<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Login</title>
</head>
<body>
<form action="/login/" method="POST">
<h3>用户名<input name = "username"></h3>
<h3>密码<input name = "password"></h3>
<input type="submit" value ="登录">
</form>
</body>
</html>