<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script language="javascript" src="file:///D|/WEB软件/jQuery1.11.0_20140330.chm" type="text/javascript"></script>
<title>无标题文档</title>
</head>
<style type="text/css">
#test{
display:none;
width:120px;
height:60px;
border:1px solid #ccc;
}
</style>
<script type="text/javascript">
function sayHello(){
$("#test").show();
}
</script>
<body>
<div id="test">Hello iMooc!</div>
<button onclick="sayHello()">点我！</button>
</body>
</html>
