C++ 我如何 go 关于将字符串数组中的点设置为枚举变量

Question

So what I am attempting to do is randomly populate a string array with a deck of cards. I am attempting to do this by "randomly" creating a number between 0-51 so that my array at that location will equal that enum suit followed by the enum value. So looking at my code you can see that the way I am setting the value in my array will cause an error. How do I go about accomplishing this while keeping the enumeration?

class DeckOfCards{
private:
    string deck[52];
    int sCount = 0;
    int vCount = 0;
    enum Suits{hearts, diamonds, clubs, spades};
    enum Value{two, three, four, five, six, seven, eight, nine, ten, jack, queen, king, ace};
public:
    DeckOfCards(){
        deck[52];
    }
    void shuffle(DeckOfCards noShuff){
        srand(time(nullptr));
        for(int i = 0; i < 52; i++){
            deck[rand() % 52] = Suits[sCount] + Value[vCount];
            sCount++;
            vCount++;
        }
    }
};

Answer 1

Your first issue here is that you are attempting to reference the enum values of Suites and Value incorrectly. Value[0] will not compile, but Value::two will. Since this is not an enum class, 0 is also equivalent to Value::two (just as 1 is equivalent to Value::three ).

Without solving the other issues in the code (like sCount and vCount not being bounded by the size of Suits and Value ), you can try deck[rand() % 52] = static_cast<char>(sCount + vCount) .

However, I do strongly recommend you abstract the "Card" to a class instead of using std::string (see below).

class Card {
 ...
};

class DeckOfCards{
private:
    Card deck[52]; <-- Deck of "Cards"
    ...
};