一个简单登录界面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head>

</head>

<body>
<form action="a3.jsp" method="post">
学号：<input type="text" name="id"><br>
密码：<input type="password" name="mima"><br>

<input type="submit" name="提交"><br>
<a href="login.jsp">注册</a>

</form>
</body>
</html>