<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript" src="Scripts/jquery-1.4.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#Button1").click(function () { $("#id").hide(); });
$("#Button2").click(function () { $(".class").hide(); });
$("#Button3").click(function () { $("span").hide(); });
});
</script>
</head>
<body>
<p id="id">
我是id的内容</p>
<p class="class">
我是class的内容</p>
<p>
<span>我是元素的内容</span></p>
<p>
</p>
<input id="Button1" type="button" value="隐藏id" />
<input id="Button2" type="button" value="隐藏class" />
<input id="Button3" type="button" value="隐藏元素" />
</body>
</html>