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c01/c01_29 #68

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utterances-bot opened this issue Apr 1, 2024 · 1 comment

utterances-bot commented Apr 1, 2024

1.29 局部/全局变量傻傻分不清 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_29.html

hhaxzmic commented Apr 1, 2024

第一段代码与第二段代码的主要差别在于对全局变量的处理；
第一段代码尝试修改全局变量而未使用global关键字引发错误，而第二段代码只是读取全局变量的值，所以没有问题。

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