C语言计算两个矩阵的乘积代码

以下是C语言计算两个矩阵的乘积的代码：

#include <stdio.h>

#define ROW 3
#define COL 3

void matrixMultiply(int a[][COL], int b[][COL], int c[][COL])
{
    int i, j, k;
    for (i = 0; i < ROW; i++) {
        for (j = 0; j < COL; j++) {
            c[i][j] = 0;
            for (k = 0; k < COL; k++) {
                c[i][j] += a[i][k] * b[k][j];
            }
        }
    }
}

int main()
{
    int a[ROW][COL] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
    int b[ROW][COL] = {{9, 8, 7}, {6, 5, 4}, {3, 2, 1}};
    int c[ROW][COL];

    matrixMultiply(a, b, c);

    printf("Matrix A:\n");
    for (int i = 0; i < ROW; i++) {
        for (int j = 0; j < COL; j++) {
            printf("%d ", a[i][j]);
        }
        printf("\n");
    }

    printf("\nMatrix B:\n");
    for (int i = 0; i < ROW; i++) {
        for (int j = 0; j < COL; j++) {
            printf("%d ", b[i][j]);
        }
        printf("\n");
    }

    printf("\nMatrix C (Product of A and B):\n");
    for (int i = 0; i < ROW; i++) {
        for (int j = 0; j < COL; j++) {
            printf("%d ", c[i][j]);
        }
        printf("\n");
    }

    return 0;
}

注意这里矩阵的行列数都是3，可以根据需要修改。