这里有什么问题了？？谢了
<!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" type="text/javascript"></script>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li class="hide">5</li>
<li class="hide">6</li>
<li>7</li>
<a href="javascript:;return false;">更多</a>
</ul>
<script type="text/javascript">
$("li[class='hide']").css("display","none");
$("a").click=function(){
$("li[class='hide']").css("display","none");
var aC=$("a").html();
if(aC=="更多"){
$("li[class='hide']").css("display","blcok");
aC=="简化";
}else{
$("li[class='hide']").css("display","none");
aC=="更多";
}
}
</script>
</body>
</html>
