Question

我需要一个功能来洗牌我创建的卡片和一个环在main中打印洗牌值。我不想改变什么否则。该功能必须采用52张牌和牌组大小参数。对此有何帮助？我的问题是我不知道如何编写shuffle函数并将其打印出来。

#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>

using namespace std;

class Card
{
private:
    string suit;
    string value;

public:

     Card() = default;

    Card(string a, string b)
    {
        value = a;
        suit = b;
    }

    string getSuit()
    {
        return suit;
    }

    string getValue()
    {
        return value;
    }

    void print()
    {
        cout << getValue() << " of " << getSuit() << endl;
    }

    void shuffle(Card cardlist[52], int size)
    {

    }
};

int main()
{



    Card cardlist[52];

    cardlist[0] = Card("2","Spades");
    cardlist[1] = Card("3","Spades");
    cardlist[2] = Card("4","Spades");
    cardlist[3] = Card("5","Spades");
    cardlist[4] = Card("6","Spades");
    cardlist[5] = Card("7","Spades");
    cardlist[6] = Card("8","Spades");
    cardlist[7] = Card("9","Spades");
    cardlist[8] = Card("10","Spades");
    cardlist[9] = Card("Jack","Spades");
    cardlist[10] = Card("Queen","Spades");
    cardlist[11] = Card("King","Spades");
    cardlist[12] = Card("Ace","Spades");
    cardlist[13] = Card("2","Hearts");
    cardlist[14] = Card("3","Hearts");
    cardlist[15] = Card("4","Hearts");
    cardlist[16] = Card("5","Hearts");
    cardlist[17] = Card("6","Hearts");
    cardlist[18] = Card("7","Hearts");
    cardlist[19] = Card("8","Hearts");
    cardlist[20] = Card("9","Hearts");
    cardlist[21] = Card("10","Hearts");
    cardlist[22] = Card("Jack","Hearts");
    cardlist[23] = Card("Queen","Hearts");
    cardlist[24] = Card("King","Hearts");
    cardlist[25] = Card("Ace","Hearts");
    cardlist[26] = Card("2","Diamonds");
    cardlist[27] = Card("3","Diamonds");
    cardlist[28] = Card("4","Diamonds");
    cardlist[29] = Card("5","Diamonds");
    cardlist[30] = Card("6","Diamonds");
    cardlist[31] = Card("7","Diamonds");
    cardlist[32] = Card("8","Diamonds");
    cardlist[33] = Card("9","Diamonds");
    cardlist[34] = Card("10","Diamonds");
    cardlist[35] = Card("Jack","Diamonds");
    cardlist[36] = Card("Queen","Diamonds");
    cardlist[37] = Card("King","Diamonds");
    cardlist[38] = Card("Ace","Diamonds");
    cardlist[39] = Card("2","Clubs");
    cardlist[40] = Card("3","Clubs");
    cardlist[41] = Card("4","Clubs");
    cardlist[42] = Card("5","Clubs");
    cardlist[43] = Card("6","Clubs");
    cardlist[44] = Card("7","Clubs");
    cardlist[45] = Card("8","Clubs");
    cardlist[46] = Card("9","Clubs");
    cardlist[47] = Card("10","Clubs");
    cardlist[48] = Card("Jack","Clubs");
    cardlist[49] = Card("Queen","Clubs");
    cardlist[50] = Card("King","Clubs");
    cardlist[51] = Card("Ace","Clubs");

    for (int i = 0; i < 52; i++)
        cardlist[i].print();

    return 0;
}

Answer 1

除非它是一个单行班，否则我通常不会帮助做作业。你好运，虽然它是真的！（但是你的教授不太可能在没有解释的情况下接受这个，所以你需要花一点时间来理解为什么这个有效。）

要重新排列我们将要使用的卡片shuffle：

shuffle(begin(cardlist), end(cardlist), mt19937(random_device()()))

Live Example

我还应该在这里指出你的shuffle课程中有一个Card方法。这是没有意义的。方法是对一个对象进行操作。每个Card都是一张独特的扑克牌，其属性可以通过它的方法进行操作。你不会洗牌黑桃王牌。你洗牌一副牌。因此，如果您要创建一个包含52个Deck对象的Card类，那么制作Deck::shuffle方法是有意义的，因为事实上您实际上是在洗牌

Answer 2

您可以使用rand函数随机生成两个数字，然后只交换具有这两个数字作为索引的卡片。

添加For循环可以让你随机抽样。

void shuffle(Card cardlist[52], int size)
{
    int v2;
    int v1;
    int loop=rand() % 100;
    for(int i=0;i<loop;i++)
        {   v1 = rand() % size;
            v2 = rand() % size;
            Card temp=cardlist[v1];
            cardlist[v1]=cardlist[v2];
            cardlist[v2]=temp;
    }

请注意，这是假设您需要将shuffle功能作为类Card

的成员

最好将其作为班级卡的朋友功能。

需要将一系列卡片洗牌并打印出来

2 个答案: