c++ - (C++) 如何显示这个 vector ？

Question

我想显示我的 vector P1Hand 以显示玩家 1 拥有的牌。

//Create vector to store deck names in & player's hands
    vector<string> Cards;    
    vector<string> P1Hand;


//Generate the deck of cards
    for (int i = 0; i < SuitNum;i++) //iterate through suits
    { 
       for (auto j : CardValue)
        {
            card = j.first + suits[i]; //declare card
            DeckValue[card] = CardValue[j.first];//add card to deck map and assign value
            Cards.push_back(card);  // add card to vector
            CardNum++;// raise card number for every card added to deck
        }
    }


//display cards for p1
while (CardNum > 13)
        {
           int RCard = rand()%CardNum; //generate a random number based on number of cards left in deck
           string DrawCard = Cards.at(RCard); // access a random card
           P1Hand.push_back(DrawCard); //add card to hand
           Cards.erase(Cards.begin() + RCard); // remove cards from vector so they cant be called twice
           CardNum--; //lower available cards
           cout<<"["<<DrawCard<<"]"; //print card and its value
        }
        cout<<endl;
        cout<<"Select Card to Play: ",cin>>PlayedCardP1;
        cout<<endl;

这里是我将从牌组抽取的每张牌添加到玩家手中的地方(我不确定 vector 是否有效，所以我想显示它。

P1Hand.push_back(DrawCard); //add card to hand

我已经通过谷歌搜索如何显示 vector 尝试了 std::p1hand 选项，但它只显示错误。

Answer 1

要显示 std::string 的 vector ，您可以执行以下操作:

1. for (const auto& s : vec)
       std::cout << s << std::endl;
   

2. for (auto it = vec.begin(); it != vec.end(); ++it)
       std::cout << *it << std::endl;
   

3. std::copy(vec.begin(), vec.end(), 
       std::ostream_iterator<std::string>(std::cout, "\n"));