在页面中如果我看到标题过长我们可以使用text-overflow:ellipsis;来实现省略号了，但是有时会发现不兼容，那我们也可以使用js来实现，下面我总结了一些方法。
firefox7.0开始兼容text-overflow:ellipsis;这样的话，以后的省略号就可以做到浏览器兼容了，代码片段为：
代码如下
复制代码
width:200px;/*设置宽度*/
white-space:nowrap;/*设置不折行*/
text-overflow:ellipsis;/*这就是省略号喽*/
-o-text-overflow:ellipsis;/*兼容opera*/
overflow: hidden;/*设置超过的隐藏*/
例1.
代码如下
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<!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=utf-8" />
<title>JS test</title>
<style type="text/css">
*{
margin:0;
padding:0;
}
body{
padding:10px;
font-family:Arial;
}
#ididid{
position:relative;
width:150px;
height:20px;
line-height:20px;
text-overflow:ellipsis;
white-space:normal;
*white-space:nowrap;
overflow:hidden;
border:1px solid #999;
}
#ididid span{
position:absolute;
top:0;
right:0;
display:block;
float:left;
}
#ididid span:after{content:"...";}
</style>
</head>
<body>
<div id="ididid">woaicss woaicss woaicsswoaicsswoaicsswoaicss<span></span></div>
</body>
</html>
例.2
代码如下
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<!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=utf-8" />
<title>JS test</title>
<style type="text/css">
*{
margin:0;
padding:0;
}
body{
padding:10px;
font-family:Arial;
}
#ididid{
width:150px;
line-height:20px;
overflow:hidden;
border:1px solid #999;
}
</style>
</head>
<body>
<script type="text/javascript">
function testAuto(thisId,needLeng){
var ididid = document.getElementById(thisId);
var nowLeng = ididid.innerHTML.length;
if(nowLeng > needLeng){
var nowWord = ididid.innerHTML.substr(0,needLeng)+'...';
ididid.innerHTML = nowWord;
}
}
</script>
<div id="ididid">2323232woaicsswoaicsswoaicsswoaicss</div>
<script type="text/javascript">
testAuto('ididid',15)
</script>
</body>
</html>
