为什么变量不用加var即可以识别呀?
看透不说透
看透不说透 2016-12-20 13:32:13
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数据分析师

Why can variables be identified without adding var? -PHP Chinese website Q&A-Why can variables be identified without adding var? -PHP Chinese website Q&A

Please watch and learn.

迷茫

在javascript入门篇提到过,变量可以不声明,直接使用,但是不规范,需要先声明,后使用。

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