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这么写是不是矛盾哈

WBOY
Release： 2016-06-13 12:20:16
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这样写是不是矛盾哈
defined('THINK_PATH') or exit();
我的理解是：如果定义了THINK_PATH就执行，或者是退出。
那么问题来了，如果真定义了，他是执行还是退呢，因为这里是or的关系。太矛盾了，让计算机啥整。听谁的
------解决思路----------------------
逻辑或表达式 自左向右检查，只要有一项成立就结束，后面的不在判断了
这就是 逻辑或表达式 的 短路效应

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defined nbsp path
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