<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script>
var xing = prompt('请输入你的名字');
var mi = prompt('请输入你的密码');
while (xing != 'admin' || mi != '123456') {
alert('登陆失败');
xing = prompt('请输入你的名字');
mi = prompt('请输入你的密码');
}
alert('登陆成功');
</script>
</head>
<body>
</body>
</html>