python中global和nonlocal关键字有什么区别

今天就跟大家聊聊有关python中global和nonlocal关键字有什么区别，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

global关键字:

Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32Type "help", "copyright", "credits" or "license()" for more information.>>> info = '全局'>>> def fo():        info = '外层函数'def fi():global info                info = info + '1234'print(info)        fi()print(info)>>> info'全局'>>> fo()全局1234外层函数>>> info'全局1234'>>> >>>

演示nonlocal关键字:

Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32Type "help", "copyright", "credits" or "license()" for more information.>>> info = '全局'>>> def fo():        info = '外层函数'def fi():nonlocal info                info = info + '1234'print(info)        fi()print(info)>>> >>> info'全局'>>> fo()外层函数1234外层函数1234>>> info'全局'>>> >>>

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