<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>我们互动下</title>
</head>
<body>
<script type="text/javascript">
document.write("JS进阶篇");
alert("关注JS高级篇");
</script>
</body>
</html>
你的对