哈尔滨站建筑想做一个网站

有个列表，往里面添加内容，如果对象已存在，只更新其属性，否则添加新一项。

#include <iostream>
#include <string>
#include <vector>
using namespace std;
struct test {char s;int score;
};void print_v1(vector<test> &res) {vector<test>::iterator it = res.begin();for (; it != res.end(); ++it) {cout << "[" << it->s << "," << it->score << "]" << endl;}
}void add(vector<test> &res, const test i) {vector<test>::iterator it2 = res.begin();bool flag = false;for (; it2 != res.end(); ++it2) {if (it2->s == i.s) {it2->score += i.score;flag = true;}}if (!flag)res.push_back(i);
}int main() {vector<test> res;struct test a1;a1.s = 'A';a1.score = 20;struct test a2;a2.s = 'B';a2.score = 40;struct test a3;a3.s = 'C';a3.score = 35;res.push_back(a1);res.push_back(a2);res.push_back(a3);print_v1(res);struct test i1;i1.s = 'D';i1.score = 55;struct test i2;i2.s = 'A';i2.score = 60;add(res, i1);add(res, i2);cout << "------------" << endl;print_v1(res);system("pause");return 0;
}

 运行结果：