用C语言实现矩阵乘法

以下是用C语言实现矩阵乘法的代码示例：

#include <stdio.h>

#define ROW1 2
#define COL1 3
#define ROW2 3
#define COL2 2

void matrix_multiply(int mat1[][COL1], int mat2[][COL2], int result[][COL2]) {
    int i, j, k;
    for (i = 0; i < ROW1; i++) {
        for (j = 0; j < COL2; j++) {
            result[i][j] = 0;
            for (k = 0; k < COL1; k++) {
                result[i][j] += mat1[i][k] * mat2[k][j];
            }
        }
    }
}

int main() {
    int mat1[ROW1][COL1] = {{1, 2, 3}, {4, 5, 6}};
    int mat2[ROW2][COL2] = {{7, 8}, {9, 10}, {11, 12}};
    int result[ROW1][COL2];

    matrix_multiply(mat1, mat2, result);

    printf("Result:\n");
    for (int i = 0; i < ROW1; i++) {
        for (int j = 0; j < COL2; j++) {
            printf("%d ", result[i][j]);
        }
        printf("\n");
    }

    return 0;
}