C#系列教程——switch定义及使用

代码如下：

using System;class Switch_Test{    static void Main()    {        Console.WriteLine("box sizes: 1=Small 5=Medium 10=Large");        Console.Write("请选择: ");        string s = Console.ReadLine();        int n = int.Parse(s);        int cost = 0;//初始化数据        switch (n)        {            case 1:                cost += 1;                break;            case 5:                cost += 5;                goto case 1;            case 10:                cost += 10;                goto case 1;            default:                Console.WriteLine("无效的输入. 请选择1, 5, or 10.");                break;        }        Console.WriteLine("Thank you ！你的花费＝{0}", cost);    }}