C#基础学习之Switch 举例

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

namespace @switch
...{
    class Program
    ...{
        static void Main(string[] args)
        ...{
            Console.WriteLine("这是一个模拟DOS程序菜单的程序演示，请输入如下左方的数字： ");
            Console.WriteLine("1：Hello World");
            Console.WriteLine("2：Beijing");
            Console.WriteLine("3：ShangHai");
            Console.WriteLine("4：Guangzhou");

            ConsoleKeyInfo st = Console.ReadKey();
            string str = st.KeyChar.ToString();

            switch (str)
            ...{
                case "1":
                    Console.WriteLine("您选择的是序号1，您好，世界！");
                    break;
                case "2":
                    Console.WriteLine("您选择的是序号2，北京");
                    break;
                case "3":
                    Console.WriteLine("您选择的是序号3，上海");
                    break;
                case "4":
                    Console.WriteLine("您选择的是序号4，广州");
                    break;
                default:
                    break;
            }
        }
    }
}