请用C++写一个矩阵相乘的代码
时间: 2024-05-10 18:20:08 浏览: 3
以下是矩阵相乘的C代码示例:
```c
#include <stdio.h>
int main() {
int mat1[3][3] = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} };
int mat2[3][3] = { {9, 8, 7}, {6, 5, 4}, {3, 2, 1} };
int result[3][3] = { {0, 0, 0}, {0, 0, 0}, {0, 0, 0} };
// 计算矩阵相乘
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
for (int k = 0; k < 3; k++) {
result[i][j] += mat1[i][k] * mat2[k][j];
}
}
}
// 输出结果
printf("矩阵相乘的结果:\n");
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
printf("%d ", result[i][j]);
}
printf("\n");
}
return 0;
}
```
运行结果:
```
矩阵相乘的结果:
30 24 18
84 69 54
138 114 90
```