Console.Write("请输入人数：");

            int renshu = int.Parse(Console.ReadLine());

         ArrayList chengji = new ArrayList();

            if (renshu >= )

            {

                for (int h = ; h <= renshu; h++)

                {

                    Console.Write("请输入第" + h + "个人成绩");

                    chengji.Add(int.Parse(Console.ReadLine()));

                }

                chengji.Sort();

                foreach (int a in chengji)

                {

                    Console.Write(a+" ");

                }

                int he = ;

                for (int i = ; i <= renshu - ; i++)

                {

                    he = he + (int)chengji[i];

                }

                double pj = (he - (int)chengji[] - (int)chengji[] - (int)chengji[renshu - ] -(int)chengji[renshu - ] / (renshu - ));

                Console.Write("去掉两个最低分"+chengji[]+"，"+chengji[]+"去掉两个最高分"+chengji[renshu - ]+"，"+chengji[renshu - ]+"最后的成绩是："+pj);

            }

            else

            {

                Console.WriteLine("您输入的人数要大于等于5！！！");

            }

            Console.ReadLine();