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Closure In Python, a function is also an object. Therefore, when we define a function, we can nest another function and return the nested function, for example: from math import pow def make_pow(n): Def inner_func(x): # Nested definition of inner_func           return pow(x, n) # Note that n of the external function is quoted here return inner_func &n

1. Python Advanced: Closure Carrying State

Introduction: In Python, a function is also an object. Therefore, when we define a function, we can define another nested function and return the nested function, for example:

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Introduction: Mainly because I don’t quite understand how the session life cycle is calculated and how it carries status information. I hope you can give me some advice.

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I don’t quite understand the session concept of PHP

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