为什么显示之后li前面的点不见了
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>挑战题</title>
</head>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script>
<script>
$(function(){
$('a').click(function(){
if($('a').html()=='more'){
$('a').html("any");
$('li[class="h"]').css("display","block");
}else{
$('a').html("more");
$('li[class="h"]').css("display","none");
}
});
})
</script>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li style="display:none" class="h">6</li>
<li style="display:none" class="h">7</li>
</ul>
<a href="javascript:;">more</a>
</body>
</html>
