如何使用jQuery做出文字超过规定行数自动加省略号

来源：保捱科技网

这次给大家带来如何使用jQuery做出文字超过规定行数自动加省略号，使用jQuery做出文字超过规定行数自动加省略号的注意事项有哪些，下面就是实战案例，一起来看一下。

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title> jQuery自动添加省略号</title>
 <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
 <script type="text/javascript">
 $(function () {
 $(".figcaption").each(function (i) {
 var pH = $(this).height();
 var $p = $("p", $(this)).eq(0);
 while ($p.outerHeight() > pH) {
 $p.text($p.text().replace(/(\s)*([a-zA-Z0-9]+|\W)(\.\.\.)?$/, "..."));
 };
 });
 });
 </script>
 <style>
 *{
 padding: 0px;
 margin: 0px;
 }
 .figcaption{
 width: 300px;
 height: 50px;
 /*根据父元素的高度来添加省略号
 *可以任意设置显示的行数
 */
 border: 1px solid red;
 }
 </style>
</head>
<body>
 <p class="figcaption">
 <p>
 You probably can't do it (currently?) without a fixed-width font like Courier. With
 a fixed-width font every letter occupies the same horizontal space, so you could
 probably count the letters and multiply the result with the current font size in
 ems or exs. Then you would just have to test how many letters fit on one line, and
 then break it up.</p>
 </p>
</body>
<script>
</script>
</html>

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