<!DOCTYPE HTML>
<HTML>
<HEAD>
<TITLE></TITLE>
<META charset="utf-8">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<style>
ul{
list-style:none;
font-size:25px;}
</style>
</HEAD>
<BODY>
<div class="nav">
<ul>
<li>春</li>
<li>夏</li>
<li>秋</li>
<li>冬</li>
</ul>
</div>
<script type="text/javascript">
window.onload=function(){
var lis=document.getElementsByTagName('li'),
len=lis.length;
for(var i=0;i<len;i++){
lis[i].onclick=(function(m){
return function(){
alert(m+1);//点春夏秋冬依次输出1、2、3、4
}
})(i);
}
}
</script>
</BODY>
</HTML>
