<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>挑战题</title>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
<style>
.none{display:none;}
</style>
</head>
<body>
<ul>
<li class="none">11111</li>
<li class="none">11111</li>
<li class="none">11111</li>
<li>2222</li>
<li>2222</li>
<li>2222</li>
<li>2222</li>
</ul>
<a href="#">更多</a>
<script>
$('a').click(function(){
if($('a').html()=='更多')
{
$('a').html('简化');
$('li[class="none"]').show();
}else{
$('a').html('更多');
$('li[class="none"]').hide();
}
});
</script>
</body>
</html>
