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PHP 中& & 与 || 的差别

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2016-06-13 13:02:43856browse

PHP 中& & 与 || 的区别

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注意: & & 与 || ?的区别:

& ?与 ? | ?的特点:先执行两侧表达式,再判断;

&& ?与 ? || ?的特点:先执行左侧,再判断,需要时再执行右侧表达式。

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