c++中怎么求一个二维数组中一行的和答:求每行的和及最大值:include <iostream> using namespace std;void max_score(int a[4][5],int max[] );void ave_score(int a[4][5],double ave[]);int main(){ int a[4][5]={{97,98,45,65,89},{78,89,98,56,64},{78,89,86,65,89},{78,99,84,100,65}};int i,...
分别用C语言和C++读取txt文件到一个二维数组答:参考思路:打开文件,然后读入一行到字符串str里面,循环读取行即可;参考例子如下:include <stdio.h> include <stdlib.h> / 1.txt 1,2,3,4,5,6,7 8,9,10,11,12,13,14 15,16,17,18,19,20,21 / int main (){ FILE *fp;int **a;//定义二维数组 int i,j;int row=0,...