接收用户输入的用户名和密码如用户名为admin，密码为123456，则提示用户登录成功，如果不正确，提示账号或者密码错误请从新输入再次输入密码

<!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, in

成成yj

17123人浏览 · 2021-11-04 09:00:56

成成yj · 2021-11-04 09:00:56 发布

<!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>
</head>
<body>
    <script>
     var name1 = prompt('请输入用户名');
     var psd = prompt('请输入密码');
     // for\ while\do while
     while(name1 !='admin'&&psd!=123456){
         alert('账号密码错误');
         name1 =prompt('请重新输入用户');
         psd = prompt('请重新输入密码')
      } alert('登录成功')
    </script>
</body>
</html>