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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
<style>
.dd{
width: 80%;
margin: 10px auto;
text-align: center;
}
</style>
</head>
<body>
<div class="dd">
<h2>欢迎来到欢乐世界</h2>
<a href="reg.jsp">注册</a>
<a href="login.jsp">登录</a>
<a href="">退出</a>
</div>
</body>
</html>