<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>jquery 截取超长文本</title>
<script src="http://code.jquery.com/jquery-1.8.1.min.js" type="text/javascript"></script>
<style>
*{ margin:0; padding:0;font-family:"宋体",Arial, Helvetica, sans-serif;}
#best{ width:300px; height:200px; border:1px solid #ccc; margin:60px auto 0; line-height:1.6; font-size:14px; padding:10px 0 0 10px}
.blank{ font-size:18px; font-weight:bold; text-align:center; padding:20px}
</style>
<script type="text/javascript">
jQuery.fn.limit=function(){
var self = $("div[limit]");
self.each(function(){
var objString = $(this).text();
var objLength = $(this).text().length;
var num = $(this).attr("limit");
if(objLength > num){
$(this).attr("title",objString);
objString = $(this).text(objString.substring(0,num) + "...");
}
})
}
$(function(){
$(document.body).limit();
})
</script>
</head>
<body>
<div class="blank">请按F5刷新页面。。。。</div>
<div id="best">
<div limit="12">计算字串的长度长度长度长度</div>
<div limit="10">这边有优化很公开这边</div>
<div limit="12">这边有优化很公开长度长度很公开长度</div>
<div limit="12">计算字长度长度</div>
<div limit="10">这边有优化很边有优化很边有优化很边有优化很边有优化很</div>
</div>
</body>
</html>
