二维数组、多维数组

1030351096zzz 2021-08-05 原文

1.二维数组

二维数组由多个一维数组组成，其定义方式：

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

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

 1 Console.Write("请输入班级人数：");
 2             int a = int.Parse(Console.ReadLine());
 3             double[,] score = new double[a, 3];
 4             for (int i = 0; i < a; i++)
 5             {
 6                 Console.Write("请输入第{0}个人的语文成绩：", i + 1);
 7                 score[i, 0] = double.Parse(Console.ReadLine());
 8                 Console.Write("请输入第{0}个人的数学成绩：", i + 1);
 9                 score[i, 1] = double.Parse(Console.ReadLine());
10                 Console.Write("请输入第{0}个人的英语成绩：", i + 1);
11                 score[i, 2] = double.Parse(Console.ReadLine());
12             }
13             for (int i = 0; i < a; i++)
14             {
15                 for (int j = 0; j < 3; j++)
16                 {
17                     Console.Write(score[i, j] + "\t");
18                 }
19                 Console.WriteLine();
20             }

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

 1 Console.Write("请输入班级人数：");
 2             int a = int.Parse(Console.ReadLine());
 3             double[,] score = new double[a, 3];
 4             for (int i = 0; i < a; i++)
 5             {
 6                 Console.Write("请输入第{0}个人的语文成绩：", i + 1);
 7                 score[i, 0] = double.Parse(Console.ReadLine());
 8                 Console.Write("请输入第{0}个人的数学成绩：", i + 1);
 9                 score[i, 1] = double.Parse(Console.ReadLine());
10                 Console.Write("请输入第{0}个人的英语成绩：", i + 1);
11                 score[i, 2] = double.Parse(Console.ReadLine());
12             }
13             for (int i = 0; i < a - 1; i++)
14             {
15                 for (int j = i + 1; j < a; j++)
16                 {
17                     if (score[i, 0] < score[j, 0])
18                     {
19                         double zhong = score[i, 0];
20                         score[i, 0] = score[j, 0];
21                         score[j, 0] = zhong;
22                         zhong = score[i, 1];
23                         score[i, 1] = score[j, 1];
24                         score[j, 1] = zhong;
25                         zhong = score[i, 2];
26                         score[i, 2] = score[j, 2];
27                         score[j, 2] = zhong;
28                     }
29                 }
30             }
31             Console.WriteLine("两个语文最高分是{0}、{1}", score[0, 0], score[1, 0]);
32             for (int i = 0; i < a - 1; i++)
33             {
34                 for (int j = i + 1; j < a; j++)
35                 {
36                     if (score[i, 1] > score[j, 1])
37                     {
38                         double zhong = score[i, 0];
39                         score[i, 0] = score[j, 0];
40                         score[j, 0] = zhong;
41                         zhong = score[i, 1];
42                         score[i, 1] = score[j, 1];
43                         score[j, 1] = zhong;
44                         zhong = score[i, 2];
45                         score[i, 2] = score[j, 2];
46                         score[j, 2] = zhong;
47                     }
48                 }
49             }
50             Console.WriteLine("两个数学最低分是{0}、{1}", score[0, 1], score[1, 1]);
51             double sum = 0;
52             for (int i = 0; i < a; i++)
53             {
54                 sum += score[i, 2];
55             }
56             Console.WriteLine("英语平均分是{0}", sum / a);

打印“王”字

 1  string[,] wang = new string[7, 7]
 2             {
 3             {"■","■","■","■","■","■","■"},
 4             {"  ","  ","  ","■","","",""},
 5             {"  ","  ","  ","■","","",""},
 6             {"■","■","■","■","■","■","■"},
 7             {"  ","  ","  ","■","","",""},
 8             {"  ","  ","  ","■","","",""},
 9             {"■","■","■","■","■","■","■"},
10             };
11             for (int i = 0; i < 7; i++)
12             {
13                 for (int j = 0; j < 7; j++)
14                 {
15                     Console.Write(wang[i, j]);
16                 }
17                 Console.WriteLine();
18             }