c++ - 从一个类的 vector 中打印内容

Question

我想打印我类(class) Board 中 vector 的内容

class Board {
public:
    Board(const string &filename);


private:
    int numLines, numColumns;
    vector<Ship> ships;
    vector <vector <int> > board;

 };

船级:

class Ship {
public:
    Ship(char symb, PositionChar pos, char ori, unsigned int tam, unsigned int cor);

 private:

    char symbol;
    PositionChar position;

    char orientation;
    unsigned int size;
    unsigned int color;
    string status;


 };

为什么我不能做这样的事情？

cout << b1.ships[1].color << endl;

只是为了测试一下

最好的问候

Answer 1

Why I can't do something like this?

cout << b1.ships[1].color << endl;

因为 ships 是 Board 的私有(private)成员，因此无法从类本身外部访问。