正在创建我的收藏夹列表

我正在创建的C++应用程序允许用户将他们喜欢的游戏添加或删除到列表中。

我想订购这份清单。

1. 塞尔达传说
2. Contra
3. GTA V

我知道我需要使用while/for循环，但我使用的是向量，我是一个新手，我不知道在代码中把while/ffor循环放在哪里。

到目前为止，我尝试过的是：

失败的尝试1-嵌套循环：

 for (gameInter = list.begin(); gameInter != list.end(); gameInter++) {
       for (int listNum = 1; listNum < list.size(); listNum++) {
            cout << listNum << ". " << *gameInter << endl;
        }
    }

尝试2失败-循环时出现错误：

case 1:
         while(listNum < list.size()) {
            cout << "Type the game title to add: n";
            cin.get();
            getline(cin, addGame);
                list.push_back(addGame);
                sort(list.begin(), list.end());
                cin.clear();
                cin.sync();
                cout << "nYour game was successfully added.n";
                listNum++;
         }
            break;

完整代码：

#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
using namespace std;
int main()
{
    int userSelection = 0;
    int listNum = 1;
    string addGame, removeGame;
    vector<string> list;
    vector<string>::iterator gameInter;
    while (userSelection != 4) {
        cout << "Type 1 to add a game to your listn";
        cout << "Type 2 to remove a game from your listn";
        cout << "Type 3 to list all gamesn";
        cout << "Type 4 to quitn";
        cin >> userSelection;
        switch (userSelection) {
        case 1:
            cout << "Type the game title to add: n";
            cin.get();
            getline(cin, addGame);
                list.push_back(addGame);
                sort(list.begin(), list.end());
                cin.clear();
                cin.sync();
                cout << "nYour game was successfully added.n";
            break;
        case 2:
            cout << "Type the game title to remove: n";
            cin.get();
            getline(cin, removeGame);
            gameInter = find(list.begin(), list.end(), removeGame);
            if (*gameInter == removeGame) {
                cout << "Title " << removeGame << " foundn";
                list.erase(gameInter);
                cout << "Title " << removeGame << " has been removed!n";
            }
            else
            {
                cout << "Title " << removeGame << " cannot be found!n";
            }
            break;
        case 3:
            cout << "nYour Favorite Games Are: n";
                for (gameInter = list.begin(); gameInter != list.end(); gameInter++) {
                    cout << listNum << ". " << *gameInter << endl;
            }
            break;
        case 4:
            cout << "Thank You for your input! Goodbyen";
            //userSelection = 4;
            break;
        default:
            cout << "That is not a valid optionn";
            break;
        }
    }
    system("pause");
    return false;
}