Viết chương trình python để xóa các từ cụ thể khỏi danh sách đã cho bằng lambda

Từ khóa

left if not left else right

27 và

left if not left else right

7

Từ khóa

left if not left else right

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Các từ khóa Python

left if not left else right

left if not left else right

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Hầu hết các giá trị trong Python sẽ ước tính thành

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

left if not left else right

Lưu ý rằng việc so sánh giá trị trung thực trực tiếp với

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

left if not left else right

left if not left else right

Khi viết câu điều kiện dựa trên tính trung thực của một giá trị, bạn không nên so sánh trực tiếp với

left if not left else right

left if not left else right

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Trong Python, bạn thường không cần phải chuyển đổi các giá trị thành rõ ràng là

left if not left else right

left if not left else right

Từ khóa

left if not left else right

22

Từ khóa Python

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Để tìm hiểu sâu hơn về từ khóa Python rất quan trọng và hữu ích này, hãy xem Null trong Python. Tìm hiểu về đối tượng noneType của Python

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

02

Từ khóa Python

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Lưu ý rằng kết quả của câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Nếu bạn muốn định nghĩa một biểu thức có tác dụng tương tự như một biểu thức ________ 402, nhưng không sử dụng từ khóa ________ 402, thì bạn có thể sử dụng toán tử bậc ba của Python

left if not left else right

Câu lệnh trên sẽ tạo ra kết quả tương tự như

left if not left else right

Bởi vì

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Nếu y là sai, thì điều này sẽ dẫn đến việc ________ 1932 được gán giá trị của ________ 1933. Nếu không,

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Mã này dài hơn, nhưng nó chỉ ra rõ ràng hơn những gì bạn đang cố gắng hoàn thành

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

20

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Cũng giống như từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Nếu bạn muốn viết một cái gì đó giống như một biểu thức

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Biểu thức này sẽ tạo ra kết quả tương tự như

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Để có cái nhìn sâu hơn về

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

15

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

Nếu bạn muốn có hành vi tương tự mà không sử dụng

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Tuyên bố này sẽ trả về kết quả tương tự như

left if not left else right

Từ khóa

left if not left else right

25

Từ khóa

left if not left else right

left if not left else right

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Một ví dụ điển hình về việc sử dụng từ khóa

left if not left else right

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

left if not left else right

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

00

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Điều này sẽ trả về

left if not left else right

left if not left else right

left if not left else right

left if not left else right

Hầu hết thời gian bạn sẽ thấy

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

left if not left else right

left if not left else right

Nếu những khái niệm này là mới đối với bạn, thì bạn có thể nhận được lời giải thích sâu hơn bằng cách xem Python ‘. =’ Không phải là ‘không phải là’. So sánh các đối tượng trong Python. Để tìm hiểu sâu hơn về cách thức hoạt động của

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

19

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Cú pháp của câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Một cách sử dụng khác của từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Đây là phiên bản một dòng của câu lệnh

left if not left else right

left if not left else right

Nếu biểu thức của bạn là những câu lệnh không phức tạp, thì việc sử dụng biểu thức bậc ba cung cấp một cách hay để đơn giản hóa mã của bạn một chút. Khi các điều kiện trở nên hơi phức tạp, tốt hơn hết là dựa vào câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

18

Câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

1. Sử dụng

   >>> help["pass"]
   The "pass" statement
   ********************
   
      pass_stmt ::= "pass"
   
   "pass" is a null operation — when it is executed, nothing happens. It
   is useful as a placeholder when a statement is required syntactically,
   but no code needs to be executed, for example:
   
      def f[arg]: pass    # a function that does nothing [yet]
   
      class C: pass       # a class with no methods [yet]
   

   18 chỉ có hiệu lực sau một câu lệnh

   >>> help["pass"]
   The "pass" statement
   ********************
   
      pass_stmt ::= "pass"
   
   "pass" is a null operation — when it is executed, nothing happens. It
   is useful as a placeholder when a statement is required syntactically,
   but no code needs to be executed, for example:
   
      def f[arg]: pass    # a function that does nothing [yet]
   
      class C: pass       # a class with no methods [yet]
   

   19 hoặc một

   >>> help["pass"]
   The "pass" statement
   ********************
   
      pass_stmt ::= "pass"
   
   "pass" is a null operation — when it is executed, nothing happens. It
   is useful as a placeholder when a statement is required syntactically,
   but no code needs to be executed, for example:
   
      def f[arg]: pass    # a function that does nothing [yet]
   
      class C: pass       # a class with no methods [yet]
   

   18 khác
2. Bạn có thể sử dụng bao nhiêu câu lệnh

   >>> help["pass"]
   The "pass" statement
   ********************
   
      pass_stmt ::= "pass"
   
   "pass" is a null operation — when it is executed, nothing happens. It
   is useful as a placeholder when a statement is required syntactically,
   but no code needs to be executed, for example:
   
      def f[arg]: pass    # a function that does nothing [yet]
   
      class C: pass       # a class with no methods [yet]
   

   18 tùy thích

Trong các ngôn ngữ lập trình khác,

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Python không có câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

9

Câu lệnh

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Lưu ý rằng câu lệnh

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

04

Vòng lặp phổ biến nhất trong Python là vòng lặp

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Một ví dụ phổ biến là lặp qua các số từ một đến năm và in chúng ra màn hình

>>>

left if not left else right

Trong các ngôn ngữ lập trình khác, cú pháp của vòng lặp

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Trong Python, vòng lặp

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

left if not left else right

Trong ví dụ này, bạn bắt đầu với danh sách [vùng chứa] tên của mọi người. Vòng lặp

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Vòng lặp

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

11

Vòng lặp

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Ghi chú. Đối với ví dụ về vòng lặp vô hạn bên dưới, hãy chuẩn bị sử dụng Ctrl + C .

Cách dễ nhất để chỉ định vòng lặp vô hạn trong Python là sử dụng từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

left if not left else right

Để biết thêm ví dụ về các vòng lặp vô hạn đang hoạt động, hãy xem Lập trình ổ cắm trong Python [Hướng dẫn]. Để tìm hiểu thêm về các vòng lặp

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

23

Nếu bạn cần thoát khỏi vòng lặp sớm, thì bạn có thể sử dụng từ khóa

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Một ví dụ về việc sử dụng từ khóa

left if not left else right

>>>

left if not left else right

Cả hai từ khóa Python

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

03

Python cũng có một từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

9 được sử dụng với vòng lặp

Ngoài việc sử dụng từ khóa

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

Cú pháp sử dụng

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Điều này rất giống với việc sử dụng

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Tài liệu chuẩn Python có một phần mà bạn thực sự nên xem qua. Nó sử dụng một ví dụ tuyệt vời để minh họa tính hữu ích của khối

left if not left else right

Nhiệm vụ mà nó hiển thị là lặp qua các số từ hai đến chín để tìm các số nguyên tố. Một cách bạn có thể làm điều này là sử dụng vòng lặp

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Bạn có thể sử dụng cờ

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Khối

left if not left else right

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Điều duy nhất bạn cần làm để sử dụng khối

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Đôi khi việc sử dụng từ khóa

left if not left else right

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

08

Từ khóa của Python

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Các hàm và phương thức có thể là những cấu trúc rất hữu ích trong bất kỳ chương trình Python nào. Để tìm hiểu thêm về cách xác định chúng và tất cả thông tin chi tiết về chúng, hãy xem

Từ khóa

left if not left else right

28

Để định nghĩa một lớp trong Python, bạn sử dụng từ khóa

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Các lớp là những công cụ mạnh mẽ trong lập trình hướng đối tượng và bạn nên biết về chúng cũng như cách định nghĩa chúng. Để tìm hiểu thêm, hãy xem

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

16

Trình quản lý bối cảnh là một cấu trúc thực sự hữu ích trong Python. Mỗi trình quản lý bối cảnh thực thi mã cụ thể trước và sau các câu lệnh bạn chỉ định. Để sử dụng một, bạn sử dụng từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Sử dụng

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Nếu bạn muốn mở một tệp, hãy làm gì đó với tệp đó, sau đó đảm bảo rằng tệp đã được đóng đúng cách, sau đó bạn sẽ sử dụng trình quản lý ngữ cảnh. Xem xét ví dụ này trong đó

left if not left else right

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Trình quản lý ngữ cảnh I/O của tệp được cung cấp bởi

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Để biết ví dụ tuyệt vời về việc sử dụng

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

07 được sử dụng với

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

16

Nếu bạn muốn truy cập vào kết quả của biểu thức hoặc trình quản lý ngữ cảnh được chuyển đến

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Hầu hết thời gian, bạn sẽ thấy hai từ khóa Python này,

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

21

Vì Python không có các chỉ báo khối để chỉ định phần cuối của một khối, nên từ khóa

left if not left else right

left if not left else right

left if not left else right

Để biết thêm về

left if not left else right

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

05

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Một ví dụ cơ bản về hàm

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

Điều này tương đương với việc xác định một hàm với

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Một cách sử dụng phổ biến cho hàm

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

Hàm lambda cung cấp một cách hay để làm như vậy

>>>

left if not left else right

Ví dụ này sắp xếp danh sách không dựa trên thứ tự bảng chữ cái mà dựa trên thứ tự số của các ký tự cuối cùng của chuỗi sau khi chuyển đổi chúng thành số nguyên. Nếu không có

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Để so sánh, đây là ví dụ trên sẽ như thế nào nếu không sử dụng

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

left if not left else right

Mã này tạo ra kết quả tương tự như ví dụ

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Để biết thêm thông tin về

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

01

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Khi không có biểu thức nào,

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>>

left if not left else right

Tuy nhiên, hầu hết thời gian bạn muốn trả về kết quả của một biểu thức hoặc một giá trị cụ thể

>>>

left if not left else right

Bạn thậm chí có thể sử dụng từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Trong hàm giai thừa ở trên, có hai trường hợp bạn muốn trả về từ hàm. Trường hợp đầu tiên là trường hợp cơ bản, khi số đó là

left if not left else right

Để tìm hiểu thêm về từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

21

Từ khóa ________ 421 của Python giống như từ khóa ________ 401 ở chỗ nó chỉ định những gì được trả về từ một hàm. Tuy nhiên, khi một hàm có câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Khi bạn gọi một hàm với các câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Ví dụ đơn giản nhất về điều này sẽ là một hàm tạo trả về cùng một bộ giá trị

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Khi ngoại lệ

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Để biết thêm thông tin về từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

20

Từ khóa

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Sau khi câu lệnh đó chạy,

left if not left else right

Ví dụ: nếu bạn muốn sử dụng lớp ________ 5778 từ mô-đun ________ 5779 trong thư viện chuẩn, thì bạn có thể sử dụng đoạn mã sau

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Nhập

left if not left else right

left if not left else right

left if not left else right

left if not left else right

left if not left else right

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

09

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Điều này sẽ nhập bất cứ thứ gì

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Nếu bạn muốn sử dụng

left if not left else right

left if not left else right

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Nhập

left if not left else right

left if not left else right

left if not left else right

left if not left else right

left if not left else right

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

07

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Đối với các mô-đun có tên thực sự dài hoặc bí danh nhập thường được sử dụng,

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Nếu bạn muốn nhập lớp

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Hiện tại,

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Đây là một giải pháp thay thế tốt hơn cho việc chỉ nhập mọi thứ từ một mô-đun và nó cho phép bạn rút ngắn tên của mô-đun đang được nhập

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

06

Bất kỳ khối xử lý ngoại lệ nào cũng bắt đầu bằng từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Mã trong khối

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Một khối

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Nếu bạn muốn tính toán và trả về số dặm trên mỗi ga-lông xăng [______6724] cho số dặm đã đi và số ga-lông xăng đã sử dụng, thì bạn có thể viết một hàm như sau

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Vấn đề đầu tiên bạn có thể thấy là mã của bạn có thể tăng

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Bây giờ nếu

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Từ khóa

left if not left else right

24

Từ khóa _______ 124 của Python được sử dụng với _______ 406 để xác định những việc cần làm khi các ngoại lệ cụ thể được đưa ra. Bạn có thể có một hoặc nhiều khối ________ 124 với một khối ________ 406. Việc sử dụng cơ bản trông như thế này

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Lấy ví dụ về

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Bạn cũng có thể sửa lại

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Tại đây, bạn sửa đổi

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Lưu ý rằng từ khóa

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Mặc dù nó được cho phép về mặt cú pháp, nhưng hãy cố gắng không sử dụng các câu lệnh

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Nếu bạn thực sự muốn bắt một loạt các ngoại lệ, thì hãy chỉ định cha mẹ

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

26

Từ khóa

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Bạn đã sử dụng

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

29

Từ khóa

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Sử dụng ví dụ từ trước, có thể hữu ích khi chỉ định rằng, bất kể điều gì xảy ra, bạn muốn biết hàm được gọi với đối số nào. Bạn có thể sửa đổi

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Bây giờ, bất kể

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

Từ khóa

left if not left else right

9 được sử dụng với

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

06 và

left if not left else right

24

Bạn đã biết rằng từ khóa

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

left if not left else right

left if not left else right

Trong ngữ cảnh này, mã trong khối

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Trong ví dụ về

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

left if not left else right

Bây giờ, kết quả của một cuộc gọi đến

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Để biết thêm về cách sử dụng khối

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

12

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Nói chung, các câu lệnh

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

17

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Bạn có thể tạo một hàm không đồng bộ bằng cách thêm từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

left if not left else right

8

Từ khóa

left if not left else right

left if not left else right

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Khi sử dụng

left if not left else right

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

13

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Giả sử bạn muốn xóa một từ điển mà bạn nhận được từ phản hồi API bằng cách loại bỏ các khóa mà bạn biết mình sẽ không sử dụng. Bạn có thể làm như vậy với từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

left if not left else right

Thao tác này sẽ xóa khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

14

Nếu bạn cần sửa đổi một biến không được xác định trong một hàm nhưng được xác định trong phạm vi toàn cầu, thì bạn sẽ cần sử dụng từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Một ví dụ cơ bản là tăng biến toàn cục bằng lệnh gọi hàm. Bạn có thể làm điều đó với từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>>

left if not left else right

Điều này thường không được coi là thực hành tốt, nhưng nó có công dụng của nó. Để tìm hiểu thêm về từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

10

Từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]

left if not left else right

Từ khóa này không được sử dụng thường xuyên, nhưng đôi khi nó có thể hữu ích. Để biết thêm về phạm vi và từ khóa

>>> help["pass"]
The "pass" statement
********************

   pass_stmt ::= "pass"

"pass" is a null operation — when it is executed, nothing happens. It
is useful as a placeholder when a statement is required syntactically,
but no code needs to be executed, for example:

   def f[arg]: pass    # a function that does nothing [yet]

   class C: pass       # a class with no methods [yet]