本文实例讲述了jQuery实现文字超过1行、2行或规定的行数时自动加省略号的方法。分享给大家供大家参考，具体如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>www.jb51.net 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 divH = $(this).height();
var $p = $("p", $(this)).eq(0);
while ($p.outerHeight() > divH) {
$p.text($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>
<div 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>
</div>
</body>
<script>
</script>
</html>
运行效果：
更多关于jQuery相关内容可查看本站专题：《jQuery字符串操作技巧总结》、《jQuery操作xml技巧总结》、《jQuery扩展技巧总结》、《jquery选择器用法总结》及《jQuery常用插件及用法总结》
希望本文所述对大家jQuery程序设计有所帮助。
