<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="//www.VeVB.COm/" />
<title>武林网</title>
<style type="text/css">
li{
list-style-type:none;
width:150px;
height:30px;
}
.run{background-color:green;}
.static{background-color:#603;}
</style>
<script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>
<script type="text/javascript">
$(document).ready(function(){
function runit(){
$(".run").animate({width:"250px"});
$(".run").animate({width:"150px"},runit);
}
$("button").click(function(){
runit();
$("li:animated").css("background-color","blue");
})
})
</script>
</head>
<body>
<ul>
<li class="run"></li>
<li class="static"></li>
</ul>
<button>点击开始动画</button>
</body>
</html>
