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求解答

WBOY
Release： 2016-06-23 14:22:20
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一样的事件 一样的id为什么里面的判断只有前面个能用 后面个用不了


回复讨论(解决方案)

不要贴图片，贴文本代码，不知道你说哪个id用不了。

在一个页面中 id 必须是唯一的！

从获取 id 的函数名中也可以看出这一点
获取指定的id：getElementById
获取指定的name：getElement sByName

没有复数 s 就表示只取一个

id是不能重复的，亲。

JS的方式ByID只能获取一个。

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