Question

我有这个控制台应用程序，它是非常基本的，因为你可以看到并且我试图把它带到它说的地方

Console.WriteLine（＆＃34;你想回到主菜单吗？Y / N＆＃34;）;

让我说我不要按Y或N ..而是让我们说F应用程序才关闭..怎么样？我应该用什么方法来解决这个问题？

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Game
{
    class Program
    {
        static void Main(string[] args)
        {
            startMenu();


        }

        public static void startMenu()
        {
            Console.WriteLine("======= Welcome To The Player Registry =======");
            Console.WriteLine("1. Name");
            Console.WriteLine("2. Age");
            Console.WriteLine("3. City");

            try
            {
                int value = Convert.ToInt32(Console.ReadLine());
                int answer = value;
                switch (answer)
                {
                    case 1:
                        Console.Clear();
                        Console.WriteLine("======= Player Names=======");
                        Console.WriteLine("Jonsson, Adam");
                        Console.WriteLine("Jetsson, Carl");
                        Console.WriteLine("Jimmy, Golf");
                        Console.WriteLine("Ali, Mohammed");
                        Console.WriteLine();

                        Console.WriteLine("Would you like to go back to the main menu? Y/N");
                        string choice = Console.ReadLine();
                        if (choice.Equals("Y", StringComparison.OrdinalIgnoreCase) || choice.Equals("y", StringComparison.OrdinalIgnoreCase))
                        {
                            Console.Clear();
                            startMeny();
                        }
                        if (choice.Equals("N", StringComparison.OrdinalIgnoreCase) || choice.Equals("n", StringComparison.OrdinalIgnoreCase))
                        {
                            Console.Clear();
                            Console.WriteLine("Okay.. Bye!");
                            Console.ReadKey();
                        }
                        break;

                    case 2:
                        Console.WriteLine("Look it works!");
                        break;
                    default:
                        Console.WriteLine("What?..");
                        return;

                }
            }
            catch
            {

            }
        }
    }
}

Answer 1

当你点击任何其他键时它会关闭，因为应用程序已完成执行。为了强制应用程序等待，您需要添加行Console.ReadLine();。在您的情况下，您可以将代码更改为此

if (choice.Equals("Y", StringComparison.OrdinalIgnoreCase) || choice.Equals("y", StringComparison.OrdinalIgnoreCase))
{
    Console.Clear();
    startMeny();
}
else if (choice.Equals("N", StringComparison.OrdinalIgnoreCase) || choice.Equals("n", StringComparison.OrdinalIgnoreCase))
{
    Console.Clear();
    Console.WriteLine("Okay.. Bye!");
    Console.ReadKey();
}
else
{
  Console.WriteLine("Wrong Key");
  Console.ReadLine();
}
break;

case 2:
    Console.WriteLine("Look it works!");
    Console.ReadLine();
    break;
default:
    Console.WriteLine("What?..");
    Console.ReadLine();
    return;

Answer 2

控制台应用程序正在关闭，因为它只会运行，直到它无需执行任何操作。避免关闭程序的一个好方法是让用户选择执行其他操作。

这些都需要更多代码来匹配您的项目，但这只是一个简单的想法：

你可以创建一些方法来帮助你：

 public static string BackToMainMenu()
    {
        Console.WriteLine("Would you like to go back to the main menu? Y/N");
        return Console.ReadLine(); ///returns the user's choice in a string variable
    }

 public static void CheckChoice(string choice)
    {
        if (choice == "y")
        {
            ///back at menu stuff goes here
        }

        if (choice == "n")
        {
            ///whatever you want to do on "n"
        }

        ///if user types anything other than y or n (could also use 'else')
        if (choice != "n" && choice != "y")
        {
            Console.WriteLine("Incorrect Input");

            ///Ask user if they want to go back to menu (again) 
            ///check their choice
            CheckChoice(BackToMainMenu());
        }
    }

将案例1中的内容替换为：

   case 1:
                    Console.Clear();
                    Console.WriteLine("======= Player Names=======");
                    Console.WriteLine("Jonsson, Adam");
                    Console.WriteLine("Jetsson, Carl");
                    Console.WriteLine("Jimmy, Golf");
                    Console.WriteLine("Ali, Mohammed");
                    Console.WriteLine();

                    ///ask "back to menu?" and check choice
                    CheckChoice(BackToMainMenu());

为什么我的应用程序在按下随机字符时关闭？

2 个答案: