编程实现:求二维数组a[3][3]={1,2,3,4,5,6,7,8,9}的各行元素的和_百度...答:写了一个,请参考。include<stdio.h> int main(){ int a[3][3]={1,2,3,4,5,6,7,8,9};int i = 0, j = 0, sum = 0;for(i = 0; i < 3; i++){ sum = 0;for(j = 0; j < 3; j++){ sum += a[i][j];} printf("第%d行的和:%d\n", i, sum);} retu...