猜拳游戏（三局两胜）

  //猜拳，剪刀0-1，石头-1， 布-2
            int renying = 0;
              int dnying = 0;

              for (int i = 1; i <= 3; i++)
              {

                
                  Random r = new Random();
                  int diannao = r.Next(3);

                  Console.Write("请出拳;剪刀0-1，石头-1， 布-2  :");
                  int ren = int.Parse(Console.ReadLine());

                  Console.WriteLine("电脑出拳 :{0}", diannao);

                  if (diannao - ren == -1 || ren - diannao == -2)//所有人赢得情况
                  {

                      renying++;
                      Console.WriteLine("恭喜您，您赢了");


                  }
                  else if (diannao == ren)

                  {
                      Console.WriteLine("平局");
                  }
                  else
                  {
                      dnying++;
                      Console.WriteLine("很遗憾，您输了");
                  }

              }
              if (renying >= 2)
              {
                  Console.WriteLine("三局两胜，恭喜您，您赢了");
              }
              if (dnying >= 2)
              {
                  Console.WriteLine("三局两胜，很遗憾，您输了");
              }