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HTML5中的autofocus（自动聚焦）属性介绍_html5教程技巧

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Release： 2016-05-16 15:48:04
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这里要讲的一个简单的HTML5功能是当页面加载完成时让输入焦点自动落到某个元素上；这个动作用autofocus属性完成。

HTML代码非常简单：

复制代码
代码如下:





当有了autofocus属性，这些 INPUT, TEXTAREA, 或 BUTTON元素都能在页面加载是被选中。但如果使用纯显示元素，例如H1标记，autofocus属性并不好用。

这个属性在某些情况下非常有用。例如谷歌的首页，人们99%的时间都是用它来搜索，所以页面一旦加载，光标必然定位在输入框里。以前需要使用JavaScript才能完成，现在完全不需要了，html自己就能完成。

Related labels：
html5 Attributes
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