如何为 Switch 语句创建循环，直到用户在 C# 中输入特定单词

如何解决如何为 Switch 语句创建循环，直到用户在 C# 中输入特定单词

我正在尝试创建一个“咖啡店”，控制台会继续询问用户他们想要什么，直到他们输入完成为止。使用我包含的代码，它会询问您想要什么，然后执行一次 while 循环。我对此很陌生，因此将不胜感激。

    static void Main(string[] args)
    {
        int totalCost = 0;
        Console.WriteLine("Hi,what would you like to buy?");
        Console.WriteLine("Please type your choice; the menu is coffee,cookie,latte,muffin,tea,and brownie!");
        string food = Console.ReadLine();
        string v = "Thank you,that will cost $";

        do
        {
            food = Console.ReadLine();

            switch (food)
            {
                case "coffee":
                    Console.WriteLine(v + "4");
                    totalCost = totalCost + 4;
                    break;

                case "cookie":
                    Console.WriteLine(v + "2");
                    totalCost = totalCost + 2;
                    break;

                case "latte":
                    Console.WriteLine(v + "5");
                    totalCost = totalCost + 5;
                    break;

                case "muffin":
                    Console.Write(v + "3");
                    totalCost = totalCost + 3;
                    break;

                case "tea":
                    Console.WriteLine(v + "2");
                    totalCost = totalCost + 2;
                    break;

                case "brownie":
                    Console.WriteLine(v + "100");
                    totalCost = totalCost + 100;
                    break;

                case "finish":
                    Console.WriteLine("Your total is $" + totalCost + ". Thank you for your purchase - enjoy!");
                    break;

                default:
                    Console.WriteLine("Hi,what would you like to buy?");
                    Console.WriteLine("Please type your choice; the menu is coffee,and brownie!");
                    break;
            }
            break; 
        }

        while (food != "finish");



        Console.Read();
    } 

解决方法

我修改了你的代码：

static void Main(string[] args)
    {
        int totalCost = 0;
        Console.WriteLine("Hi,what would you like to buy?");
        Console.WriteLine("Please type your choice; the menu is coffee,cookie,latte,muffin,tea,and brownie!");
        string food = "";
        string v = "Thank you,that will cost $";

        do
        {
            food = Console.ReadLine();

            switch (food)
            {
                case "coffee":
                    Console.WriteLine(v + "4");
                    totalCost = totalCost + 4;
                    break;

                case "cookie":
                    Console.WriteLine(v + "2");
                    totalCost = totalCost + 2;
                    break;

                case "latte":
                    Console.WriteLine(v + "5");
                    totalCost = totalCost + 5;
                    break;

                case "muffin":
                    Console.Write(v + "3");
                    totalCost = totalCost + 3;
                    break;

                case "tea":
                    Console.WriteLine(v + "2");
                    totalCost = totalCost + 2;
                    break;

                case "brownie":
                    Console.WriteLine(v + "100");
                    totalCost = totalCost + 100;
                    break;

                case "finish":
                    Console.WriteLine("Your total is $" + totalCost + ". Thank you for your purchase - enjoy!");
                    break;

                default:
                    Console.WriteLine("Hi,what would you like to buy?");
                    Console.WriteLine("Please type your choice; the menu is coffee,and brownie!");
                    break;
            }
        }
        while (food != "finish");
        Console.Read();
    } 

此代码按您的预期工作