180 lines
3.8 KiB
C#
180 lines
3.8 KiB
C#
#region 练习题一
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int[,] arr1 = new int[100, 100];
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int index = 1;
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for (int i = 0; i < arr1.GetLength(0); i++)
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{
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for (int j = 0; j < arr1.GetLength(1); j++)
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{
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arr1[i, j] = index;
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++index;
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}
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}
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for (int i = 0; i < arr1.GetLength(0); i++)
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{
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for (int j = 0; j < arr1.GetLength(1); j++)
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{
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Console.Write(arr1[i, j] + "\t");
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}
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Console.WriteLine();
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}
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#region clear
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Console.ReadKey();
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Console.Clear();
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#endregion
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#endregion
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#region 练习题二
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Console.WriteLine("练习题二");
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int[,] arr2 = new int[6, 6];
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Random r = new Random();
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Console.WriteLine(arr2.GetLength(0) / 2 + " " + arr2.GetLength(1) / 2);
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for (int i = 0; i < arr2.GetLength(0); i++)
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{
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for (int j = 0; j < arr2.GetLength(1); j++)
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{
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if (i < arr2.GetLength(0)/2 && j+1 > arr2.GetLength(1)/2)
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arr2[i, j] = 0;
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else
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arr2[i, j] = r.Next(1, 11);
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}
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}
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for (int i = 0; i < arr2.GetLength(0); i++)
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{
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for (int j = 0; j < arr2.GetLength(1); j++)
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{
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Console.Write(arr2[i, j] + "\t");//+" "+ i + j +
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}
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Console.WriteLine();
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}
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#region clear
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Console.ReadKey();
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Console.Clear();
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#endregion
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#endregion
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#region 练习题三
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Console.WriteLine("练习题三");
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int[,] arr3 = new int[3, 3];
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int sum = 0;
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for (int i = 0; i < arr3.GetLength(0); i++)
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{
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for (int j = 0; j < arr3.GetLength(1); j++)
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{
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arr3[i, j] = r.Next(1,11);
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if (i == j)
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sum += arr3[i, j];
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}
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}
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for (int i = 0; i < arr3.GetLength(0); i++)
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{
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for (int j = 0; j < arr3.GetLength(1); j++)
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{
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Console.Write(arr3[i, j] + "\t");
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}
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Console.WriteLine();
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}
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Console.WriteLine(sum);
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#region clear
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Console.ReadKey();
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Console.Clear();
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#endregion
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#endregion
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#region 练习题四
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Console.WriteLine("练习题四");
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int[,] arr4 = new int[3, 3];
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sum = 0;
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for (int i = 0; i < arr4.GetLength(0); i++)
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{
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for (int j = 0; j < arr4.GetLength(1); j++)
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{
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arr4[i, j] = r.Next(1, 11);
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if (i == j)
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sum += arr4[i, j];
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else if (i + j == arr4.GetLength(1) - 1)
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sum += arr4[i, j];
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}
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}
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for (int i = 0; i < arr4.GetLength(0); i++)
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{
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for (int j = 0; j < arr4.GetLength(1); j++)
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{
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Console.Write(arr4[i, j] + "\t");
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}
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Console.WriteLine();
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}
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Console.WriteLine(sum);
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#region clear
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Console.ReadKey();
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Console.Clear();
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#endregion
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#endregion
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#region 练习题五
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Console.WriteLine("练习题五");
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int[,] arr5 = new int[5, 5];
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int max = 0;
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int min = 11;
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for (int i = 0; i < arr5.GetLength(0); i++)
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{
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for (int j = 0; j < arr5.GetLength(1); j++)
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{
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arr5[i, j] = r.Next(1,11);
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if (arr5[i, j] > max)
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max = arr5[i, j];
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if (arr5[i, j] < min)
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min = arr5[i, j];
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}
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}
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for (int i = 0; i < arr5.GetLength(0); i++)
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{
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for (int j = 0; j < arr5.GetLength(1); j++)
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{
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Console.Write(arr5[i, j] + "\t");
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}
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Console.WriteLine();
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}
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Console.WriteLine(max);
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Console.WriteLine(min);
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#region clear
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Console.ReadKey();
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Console.Clear();
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#endregion
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#endregion
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#region 练习题六
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Console.WriteLine("练习题六");
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int m = 5, n = 5;
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int[,] arr6 = new int[m, n];
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//bool类型的数组默认值是false，所以可以用来标记某个位置是否被访问过
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bool[] hang = new bool[m];
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bool[] lie = new bool[n];
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for (int i = 0; i < arr6.GetLength(0); i++)
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{
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for (int j = 0; j < arr6.GetLength(1); j++)
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{
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arr6[i, j] = r.Next(0, 2);
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Console.Write(arr6[i, j] + "\t");
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if (arr6[i, j] == 1)
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{
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hang[i] = true;
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lie[j] = true;
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}
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}
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Console.WriteLine();
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}
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Console.WriteLine("分割");
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for (int i = 0; i < arr6.GetLength(0); i++)
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{
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for (int j = 0; j < arr6.GetLength(1); j++)
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{
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if (hang[i] == true || lie[j] == true)
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{
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arr6[i, j] = 1;
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}
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Console.Write(arr6[i, j] + "\t");
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}
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Console.WriteLine();
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}
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#endregion |