Question

我想要做的是，在这个人输入他们的名字之后，询问他们是否愿意再次这样做，如果没有，请点击n，然后退出程序。但我似乎无法让它发挥作用。我试过添加一个退出案例，但仍然没有。

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

namespace TestApp
{
    class Program
{
    static void Main()
    {
        Console.Write("Please enter your name: ");
        string name = Console.ReadLine();
        Test(name.ToLower());
        Console.ReadLine();

    }

    static void Test(string name)
    {
        bool exit = true;
        string answer = "";

        do
        {
            switch (name)
            {
                case "name":
                    Console.WriteLine("Hello Name");
                    break;
                case "name2":
                    Console.WriteLine("Hello Name2");
                    break;
            }

            Console.WriteLine("Would you like to enter a new name? y/n: ");
            if (answer == "y")
                exit = false;
            else
                exit = true;
        }
        while (exit == false);
    }
}
}

Answer 1

您没有在循环中更改'answer'变量。你在循环中缺少一个Console.ReadLine（）。

 Console.Write("Would you like to enter a new name? y/n: ");
 answer = Console.ReadLine(); <----------- this was missing
 exit = (answer == "y" || answer == "Y"); <------- this slight improvement

此外，您应该读取循环内部的名称，因为当exit为false时您想要再次读取它。现在你一遍又一遍地检查同一个名字。

static void Test() <---- remove the name parameter
{
    bool exit = true;
    string answer = "";

    do
    {
      Console.Write("Please enter your name: ");
      string name = Console.ReadLine().ToLower();     <--- read name here

Answer 2

answer = Console.ReadLine（）; //你的代码中缺少这一行。

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

namespace TestApp
{
    class Program
{
    static void Main()
    {
        Console.Write("Please enter your name: ");
        string name = Console.ReadLine();
        Test(name.ToLower());
        Console.ReadLine();

    }

    static void Test(string name)
    {
        bool exit = true;
        string answer = "";

        do
        {
            switch (name)
            {
                case "name":
                    Console.WriteLine("Hello Name");
                    break;
                case "name2":
                    Console.WriteLine("Hello Name2");
                    break;
            }

            Console.WriteLine("Would you like to enter a new name? y/n: ");
            answer = Console.ReadLine();   // you're missing this line in your code.
            if (answer == "y")
                exit = false;
            else
                exit = true;
        }
        while (exit == false);
    }
}

}

Answer 3

结合Hasan和Harsh提出的观点，这里有一个似乎可以做你想要的工作样本。

static void Test()
{
    bool exit = true;
    string answer = "";

    do
    {
        Console.Write("Please enter your name: ");
        string name = Console.ReadLine();

        switch (name)
        {
            case "name":
                Console.WriteLine("Hello Name");
                break;
            case "name2":
                Console.WriteLine("Hello Name2");
                break;
        }

        Console.WriteLine("Would you like to enter a new name? y/n: ");
        answer = Console.ReadLine();
        if (answer == "y")
            exit = false;
        else
            exit = true;
    }
    while (!exit);
}

当然，如果你输入一个不是“name1”或“name2”的名字，那么事情就会开始变得怪异，因为在这种情况下你还没有真正定义你想要发生的事情。但希望这会让你有一个良好的开端。

似乎无法循环切换语句

3 个答案: