将二维数组的行列互换
时间: 2023-12-07 16:37:26 浏览: 34
以下是将二维数组的行列互换的Python代码示例:
```python
# 定义一个二维数组
matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
# 使用zip函数和*操作符将行列互换
transpose = [list(row) for row in zip(*matrix)]
# 输出转置后的二维数组
for row in transpose:
print(row)
```
运行以上代码,输出结果为:
```
[1, 4, 7]
[2, 5, 8]
[3, 6, 9]
```
相关问题
java二维数组行列互换
以下是在Java中实现二维数组行列互换的方法:
```java
public class ArrayTranspose {
public static void main(String[] args) {
int[][] matrix = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
// 打印原始矩阵
System.out.println("原始矩阵:");
printMatrix(matrix);
// 行列互换
int[][] transposedMatrix = transpose(matrix);
// 打印互换后的矩阵
System.out.println("行列互换后的矩阵:");
printMatrix(transposedMatrix);
}
// 行列互换方法
public static int[][] transpose(int[][] matrix) {
int rows = matrix.length;
int cols = matrix[0].length;
int[][] transposedMatrix = new int[cols][rows];
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
transposedMatrix[j][i] = matrix[i][j];
}
}
return transposedMatrix;
}
// 打印矩阵方法
public static void printMatrix(int[][] matrix) {
for (int[] row : matrix) {
for (int num : row) {
System.out.print(num + " "); }
System.out.println();
}
}
}
```
运行以上代码,将会输出原始矩阵和行列互换后的矩阵。
C语言二维数组行列互换
以下是C语言二维数组行列互换的代码示例:
```c
#include <stdio.h>
int main()
{
int a[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
int i, j, temp;
// 输出原始数组
printf("原始数组:\n");
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
printf("%d ", a[i][j]);
}
printf("\n");
}
// 行列互换
for (i = 0; i < 3; i++) {
for (j = i + 1; j < 3; j++) {
temp = a[i][j];
a[i][j] = a[j][i];
a[j][i] = temp;
}
}
// 输出互换后的数组
printf("互换后的数组:\n");
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
printf("%d ", a[i][j]);
}
printf("\n");
}
return 0;
}
```