矩阵乘法的实现-将2维数组作函数的参数

#include <stdio.h>int getarray2value(int **array, int row, int col, int i, int j){return *((int*)array+i*col+j);}void multimatrix(int **ans,int **aa,int b,int c, int **ll,int m,int n){int i,j,k;if(c != m){printf("error!");return;}for(i=0;i<b;i++){for(j=0;j<n;j++)//*((int*)ans+i*n+j) = 0;{for(k=0;k<m;k++){*((int*)ans+i*n+j) += getarray2value(aa,b,c,i,k)*getarray2value(ll,m,n,k,j);}}}}void printMatrix(int **array,int b, int c){int i,j;for(i=0;i<b;i++){for(j=0;j<c;j++)//printf("%d/t",/*array[i][j]*/*((int*)array+i*c+j));printf("%d/t",getarray2value(array,b,c,i,j));printf("/n");}}int main(){int a[2][3] = {{1,2,3},{3,2,1}};int b[3][2]={1,2,2,1,0,1};int ans[2][2]={0};printf("撻淝a峈ㄩ/n");printMatrix(a,2,3);printf("撻淝b峈ㄩ/n");printMatrix(b,3,2);printf("眈傚賦彆ㄩ/n");multimatrix(ans,a,2,3,b,3,2);printMatrix(ans,2,2);getch();return 0;}