循环切换语句

Question

我是C#的新手.我在控制台应用程序中有一个"菜单".现在,当我完成从菜单中选择一个项目并执行该菜单项所需的操作时,我想循环并再次显示菜单,以便用户可以选择不同的菜单项.我在菜单上有一个退出,我只想用它退出.我尝试了一个while循环,但这不起作用.选择菜单项并运行所选项目代码后,它会关闭应用程序.我究竟做错了什么？

static void Main()
    {   
        int input = 0;
        while (true)
        {

            Console.WriteLine("MENU");
            Console.WriteLine("Please enter the number that you want to do:");
            Console.WriteLine("1. Do thing A");
            Console.WriteLine("2. Do thing B");
            Console.WriteLine("3. Do thing C");
            Console.WriteLine("4. Do thing D");
            Console.WriteLine("5. Do thing E");
            Console.WriteLine("6. Do thing F");
            Console.WriteLine("7. Exit");

            int menuchoice = int.Parse(Console.ReadLine());

            switch (menuchoice)
            {
                case 1:
                    Console.WriteLine("Thing A has been done"); 
                    break;
                case 2:
                    Console.WriteLine("Thing B has been done");
                    break;
                case 3:
                    Console.WriteLine("Thing C has been done");
                    break;
                case 4:
                    Console.WriteLine("Thing D has been done");
                    break;
                case 5:
                    Console.WriteLine("Thing E has been done");
                    break;
                case 6:
                    Console.WriteLine("Thing F has been done");
                    break;
                case 7:
                    Environment.Exit; //edit
                    break;
                default:
                    Console.WriteLine("Sorry, invalid selection");
                    break;
            }

            input++;
            if (input < 30)
                continue;
            else
                break;
        }           
    }

有人可以帮忙吗？提前致谢!

编辑:我知道"Console.Exit"不起作用.我这样做就是为了说明控制台必须从那里退出.我的问题是,每次选择一个选项并运行所选的选项代码后,我每次都需要循环整个菜单.我只想用退出来退出.但此时菜单没有循环,控制台在选择了1个选项并且选项代码已经运行后关闭.

编辑:当你启动你的程序并按1然后按Return键会发生什么？这是真正的问题,菜单似乎没有循环.在我启动程序并按1后,返回代码1中的代码完美运行,然后控制台才关闭.如果我再次启动控制台并按下2,则情况2中的代码也会完美运行,但控制台再次关闭.我已经测试了所有这些情况,所有这些都运行得很好.

Answer 1

保持简单:循环保持循环直到按下7

  int menuchoice  = 0;  
        while (menuchoice != 7)  
        {  

            Console.WriteLine("MENU");  
            Console.WriteLine("Please enter the number that you want to do:");  
            Console.WriteLine("1. Do thing A");  
            Console.WriteLine("2. Do thing B");  
            Console.WriteLine("3. Do thing C");  
            Console.WriteLine("4. Do thing D");  
            Console.WriteLine("5. Do thing E");  
            Console.WriteLine("6. Do thing F");  
            Console.WriteLine("7. Exit");  

            menuchoice = int.Parse(Console.ReadLine());  

            switch (menuchoice)  
            {  
                case 1:  
                    Console.WriteLine("Thing A has been done");   
                    break;  
                case 2:  
                    Console.WriteLine("Thing B has been done");  
                    break;  
                case 3:  
                    Console.WriteLine("Thing C has been done");  
                    break;  
                case 4:  
                    Console.WriteLine("Thing D has been done");  
                    break;  
                case 5:  
                    Console.WriteLine("Thing E has been done");  
                    break;  
                case 6:  
                    Console.WriteLine("Thing F has been done");  
                    break;  
                case 7:  
                    break;  //edit
                default:  
                    Console.WriteLine("Sorry, invalid selection");  
                    break;  
            }