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今天小编为大家带来“Python入门指南”，欢迎您的访问。
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Today, the editor brings in-depth python language (4) —— Functions ，welcome to visit!
一、函数的递归
递归循环函数的语义，每次调用都会引起新函数的开始，表示它有本地变量值的副本，包括函数的参数。每次函数调用时，函数参数的副本会临时存储，递归中各函数再运算自己的参数，相互没有影响。当基例结束运算并返回值时，各函数逐层结束运算，向调用者返回计算结果。
The semantics of a recursive loop function, where each call causes the start of a new function, indicates that it has a copy of the local variable values, including the function's arguments. Each time a function is called, a copy of the function parameters is temporarily stored, and each function computes its own parameters in recursion, without affecting each other. When the base case completes the operation and returns the value, each function completes the operation layer by layer and returns the calculation result to the caller.
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二、内置函数
在Python中，内置函数是指那些随Python环境提供，可以直接使用的函数，无需进行任何额外的导入操作。这些函数是Python标准库的一部分，可以在任何Python程序中直接调用。内置函数提供了一些基本且强大的功能，使得编程更加高效和简洁。Python内置函数有68个，如下：
In Python, built-in functions are those that come with the Python environment and can be used directly without any additional import operations. These functions are part of the Python standard library and can be called directly from any Python program. Built-in functions provide some basic and powerful features that make programming more efficient and concise. Python has 68 built-in functions, as follows:
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参考资料
《Python语言程序设计基础》
翻译：网易有道翻译
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