// 所有学生姓名数组
            string[] names = {"景珍","林惠洋","成蓉","洪南昌","龙玉民","单江开","田武山","王三明" };
            // 所有学生分数数组
            int[] scores = new int[]{90,65,88,70,46,81,100,68};
            
            // 总分 平均分
            int sum = 0, avg;
            
            // 遍历数组求学生总分
            foreach (int i in scores) {
                sum += i;
            }
            
            // 通过总分获得平均分数
            avg = sum/scores.Length;
            
            // 高于平均分的学生姓名集
            string student = null;
            for (int i = 0; i < scores.Length; i++) {
                // 比较学生分数和平均分
                if (scores[i] > avg) {
                    // 将高于平均分的学生姓名加入姓名集
                    student = student + " " + names[i] + " ";
                }
            }
            
            // 打印结果
            Console.WriteLine("平均分是" + avg + "，高于平均分的有：");
            Console.WriteLine(student);