二维数组、多维数组

1.二维数组

二维数组由多个一维数组组成，其定义方式：

int [,] array=new int [3,4]{
            {1,2,3,4},
            {3,4,5,6},
            {5,6,7,8}
            };

二维数组中括号中，逗号左边表示一维数组的个数，也可以说控制行，逗号后面的数表示每个一维数组里面有几个元素，也可以说控制列。

1.输入班级人数，输入每个人的语数英成绩，并输出

Console.Write("请输入班级人数：");
            int a = int.Parse(Console.ReadLine());
            double[,] score = new double[a, 3];
            for (int i = 0; i < a; i++)
            {
                Console.Write("请输入第{0}个人的语文成绩：", i + 1);
                score[i, 0] = double.Parse(Console.ReadLine());
                Console.Write("请输入第{0}个人的数学成绩：", i + 1);
                score[i, 1] = double.Parse(Console.ReadLine());
                Console.Write("请输入第{0}个人的英语成绩：", i + 1);
                score[i, 2] = double.Parse(Console.ReadLine());
            }
            for (int i = 0; i < a; i++)
            {
                for (int j = 0; j < 3; j++)
                {
                    Console.Write(score[i, j] + "	");
                }
                Console.WriteLine();
            }

输入班级人数，输入每个人的语数英成绩，求语文两个最高分 数学两个最低分 英语平均分

Console.Write("请输入班级人数：");
            int a = int.Parse(Console.ReadLine());
            double[,] score = new double[a, 3];
            for (int i = 0; i < a; i++)
            {
                Console.Write("请输入第{0}个人的语文成绩：", i + 1);
                score[i, 0] = double.Parse(Console.ReadLine());
                Console.Write("请输入第{0}个人的数学成绩：", i + 1);
                score[i, 1] = double.Parse(Console.ReadLine());
                Console.Write("请输入第{0}个人的英语成绩：", i + 1);
                score[i, 2] = double.Parse(Console.ReadLine());
            }
            for (int i = 0; i < a - 1; i++)
            {
                for (int j = i + 1; j < a; j++)
                {
                    if (score[i, 0] < score[j, 0])
                    {
                        double zhong = score[i, 0];
                        score[i, 0] = score[j, 0];
                        score[j, 0] = zhong;
                        zhong = score[i, 1];
                        score[i, 1] = score[j, 1];
                        score[j, 1] = zhong;
                        zhong = score[i, 2];
                        score[i, 2] = score[j, 2];
                        score[j, 2] = zhong;
                    }
                }
            }
            Console.WriteLine("两个语文最高分是{0}、{1}", score[0, 0], score[1, 0]);
            for (int i = 0; i < a - 1; i++)
            {
                for (int j = i + 1; j < a; j++)
                {
                    if (score[i, 1] > score[j, 1])
                    {
                        double zhong = score[i, 0];
                        score[i, 0] = score[j, 0];
                        score[j, 0] = zhong;
                        zhong = score[i, 1];
                        score[i, 1] = score[j, 1];
                        score[j, 1] = zhong;
                        zhong = score[i, 2];
                        score[i, 2] = score[j, 2];
                        score[j, 2] = zhong;
                    }
                }
            }
            Console.WriteLine("两个数学最低分是{0}、{1}", score[0, 1], score[1, 1]);
            double sum = 0;
            for (int i = 0; i < a; i++)
            {
                sum += score[i, 2];
            }
            Console.WriteLine("英语平均分是{0}", sum / a);

打印“王”字

 string[,] wang = new string[7, 7]
            {
            {"■","■","■","■","■","■","■"},
            {"  ","  ","  ","■","","",""},
            {"  ","  ","  ","■","","",""},
            {"■","■","■","■","■","■","■"},
            {"  ","  ","  ","■","","",""},
            {"  ","  ","  ","■","","",""},
            {"■","■","■","■","■","■","■"},
            };
            for (int i = 0; i < 7; i++)
            {
                for (int j = 0; j < 7; j++)
                {
                    Console.Write(wang[i, j]);
                }
                Console.WriteLine();
            }

split()   以。。。。进行分割

分割出来的内容需要放在string类型的数组当中不需要给数组定义长度

2.三维数组

定义方式：

int[, ,] array = new int[3, 2, 2];

 一个元素是一个点
            一维数组是一条线
            二维数组是一个面（表格）
            三维数组是一个体（立体）