switch函数 js
时间: 2023-10-12 20:04:57 浏览: 52
JavaScript中的switch函数是用于在多个选项中进行条件判断的一种语句。它根据给定的表达式的值,逐个比较每个case的值,当匹配到某个case时,执行相应的代码块,然后跳出switch语句。如果没有匹配到任何case,可以使用default关键字来执行默认的代码块。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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