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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
           //流程控制 switch case

            int age = 1;
            switch (age)
            {
                case 1:
                    Console.WriteLine("1");
                    break; //没有这个语句无法编译通过
                case 2:
                    Console.WriteLine("2");
                    break;
                default:
                    Console.WriteLine("default");
                    break;
            }
           



            Console.ReadKey();
        }
    }
}