JavaScript 全局變量

原創 fanzhou_people 2020-02-26 09:51

JaveScript：

定義在函數外的變量一定是全局變量；

定義在函數內的變量，如果聲明瞭var，那該變量就是局部變量，如果不聲明var，那該變量就是全局變量。

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