2021-03-29

//21.3.29

String answer ="y";

String userName="";//用户名

String password ="";//密码

int cardNumber=0 ;//卡号

boolean isRegister =false ;

int max =9999;

int min =1000;

Scanner input =new Scanner(System.in);

do {

System.out.println("*****欢迎进入奖客富翁系统*****");

    System.out.println("/t1.注册");

    System.out.println("/t2.登录");

    System.out.println("/t3.抽奖");

    System.out.println("***************************");

    System.out.print("请选择菜单");

    int choice = input.nextInt();

    switch (choice){

case 1:

System.out.println("[奖客富翁系统]>注册");

          System.out.println("请填写个人注册信息");

          System.out.println("用户名");

          userName =input.next();

          System.out.println("密码");

          password = input.next();

          //随机获取四位数字作为卡号

          cardNumber = (int) (Math.random()*(max - min))+min;

          System.out.println("\n注册成功，请记住您的会员卡号");

          System.out.println("用户名\t密码\t会员卡号" );

          System.out.println(userName+"\t"+password+"\t"+cardNumber );

          isRegister =true;//注册成功，标志设置为true

        case 2:

System.out.println("[奖客富翁系统>登录]");

break;

        case 3:

System.out.println("[奖客富翁系统>抽奖]");

break;

        default:

System.out.println("[您输入的有误!]");

break;

    }

System.out.print("继续吗 ？(y/n):");

    answer = input.next();

    System.out.println("");

}while ("y".equals(answer));

if ("n".equals(answer)){

System.out.println("系统退出，谢谢使用！");

}