Bootstrap 工具提示（Tooltip）插件 当您想要描述一个链接的时候，工具提示（Tooltip）就显得非常有用。工具提示（Tooltip）插件是受 Jason Frame 写的 jQuery.tipsy 的启发。工具提示（Tooltip）插件做了很多改进，例如不需要依赖图像，而是改用 CSS 实现动画效果，用 data 属性存储标题信息。
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<Meta charset="utf-8">
<Meta http-equiv="X-UA-Compatible" content="IE=edge">
<Meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
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nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" title="点击弹出提示" data-toggle="tooltip" id="clc">点击弹出提示
nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" title="点击弹出提示" data-toggle="tooltip" id="clc">点击弹出提示