一、N-S流程图;
二、运行结果;
三、源代码;
# define _CRT_SECURE_NO_WARNINGS
# include <stdio.h>int main()
{//初始化变量值;int i = 0;int j = 0;int sum = 0;int a[3][3] = { 0 };//获取数组a的值;printf("请输入9个整数!!!!\n");//循环;for (i = 0; i < 3; i++){//列;for (j = 0; j < 3; j++){//提示用户;printf("a[%d][%d]=", i, j);//获取用户输入的数据;scanf("%d", &a[i][j]);}}//换行;printf("\n");//提示用户;printf("您输入的矩阵为:\n");//打印数组;for (i = 0; i < 3; i++){for (j = 0; j < 3; j++){//打印;printf("%5d", a[i][j]);}//换行;printf("\n");}//换行;printf("\n");//运算;for (i = 0; i < 3; i++){//运算;sum = a[i][i] + sum;}//输出结果;printf("对角线之和为:%d", sum);return 0;
}