data_的用法及详解 和用处

Answer 1

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Answer 2

看了你的追问，我觉得你应该是想问自定义属性data-value的用法，一般情况下设置自定义属性是document.getElementById('text').setAttribute("data-value","value");然后取出来的话有两种方法，一种是document.getElementById('text').getAttribute("data-value");另外一种是document.getElementById('text').attributes["data-value"].nodeValue;两种都可以取出自定义属性data-value的值value。

Answer 3

向被选元素中附加或者获取数据，$(object).data(name);object为元素名，用data方法获取它的name。

Answer 4

HTML data-*   用法及详解

Answer 5

都不知道你在说啥！！