诶，不是，哪里的格式不对啊。

   string[] name = new string[8] { "景珍", "林惠洋", "成蓉", "洪南昌", "龙玉民", "单江开", "田武山", "王三明" };
            int[] score = new int[8] { 90, 65, 88, 70, 46, 81, 100, 68 };
            int sum=0,avg;
            for(int i=1;i<name.Length;i++)
            {
                sum += score[i];
            }
            avg = sum / name.Length;
            Console.WriteLine("平均分是{0},高于平均分的有：", avg);
            for(int i=1;i<name.Length;i++)
            {
                if(score[i]>avg)
                {
                    Console.Write(name[i] + " ");
                }
            }