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foundnot404
V2EX member #503861, joined on 2020-08-14 21:29:21 +08:00
foundnot404
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foundnot404's recent replies
Sep 28, 2020
Replied to a topic by
absolutelynull
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关于 PHP 的一个**运算问题
其实这东西跟编程语言没有任何关系,**就是乘方运算符,自己想一下数学中-2^2 是多少看看?
乘方的优先级是最高的,-2^2=-(2^2)=-4,(-2)^2=4,没有任何问题
»
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