实现：二维数组的成绩统计

#include<iostream>
#include<string>
// 直接调用std空间使用
using namespace std;

int main() {
	int grade[3][3] = {
		{99,99,99},
		{88,88,88},
		{77,77,77}
	};
	
	string names[3] = { "xiaohu","xiaoming","xiaogou" };

	int res = 0;
	for (int i = 0; i < sizeof(grade) / sizeof(grade[0]); i++) {
		res = 0;
		for (int j = 0; j < sizeof(grade[0]) / sizeof(grade[0][0]); j++) {
			res += grade[i][j];
		}
		cout << names[i] << "'s grade -> " << res << endl;

	}

	system("pause");
	return 0;


}