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Python Learning Comprehension Section 4th

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This section learns about functional and functional programming

Functions are designed to structure and process logic.

The procedure for defining a function is as follows:

Both functions and procedures are defined with Def, both of which can be called, and the procedure is a function that has no return value.

X=FUNC1 () #调用函数

Y=FUNC2 () #调用过程

Summarize

Number of return values = 0: Return None

Number of return values = 1: Return object

Number of return values >1: return tuple

Define a function with parameters

X, y is the formal parameter, which is the argument, and the position call corresponds to the parameter one by one

Important: Key parameters cannot be written in front of position parameters

Python Learning Comprehension Section 4th

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