只有一半的纸牌被创造出来

Question

我正在尝试为最终项目创建 BlackJack。这是我当前的代码：

public class Card
{
    private string face;
    private string suit;

    public Card(string cardFace, string cardSuit)
    {
        face = cardFace;
        suit = cardSuit;
    }

    public override string ToString()
    {
        return face + " of " + suit;
    }
}

然后我有我的套牌class:

public class Deck
{
    private Card[] deck;
    private int currentCard;
    private const int NUMBER_OF_CARDS = 52;
    private Random ranNum;

    public Deck()
    {
        string[] faces = { "Ace", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Jack", "Queen", "King" };
        string[] suits = { "Hearts", "Clubs", "Diamonds", "Spades" };         

        deck = new Card[NUMBER_OF_CARDS];
        currentCard = 0;
        ranNum = new Random();
        for (int count = 0; count < deck.Length; count++)
            deck[count] = new Card(faces[count % 13], suits[count / 13]);
    }

    public void Shuffle()
    {
        currentCard = 0;
        for (int first = 0; first < deck.Length; first++)
        {
            int second = ranNum.Next(NUMBER_OF_CARDS);
            Card temp = deck[first];
            deck[first] = deck[second];
            deck[second] = temp;
        }
    }

    public Card DealCard()
    {
        if (currentCard < deck.Length)
            return deck[currentCard++];
        else
            return null;
    }
}

然后我只是一个简单的 Windows 表单，其中包含两个用于洗牌和发牌的按钮。输出被发送到一个标签，这样我就可以看到正在处理的是什么。这是代码：

public partial class Form1 : Form
{
    Deck deck = new Deck();

    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
    }

    private void buttonDeal_Click(object sender, EventArgs e)
    {
        Card card = deck.DealCard();
        deck.DealCard();
        labelOutput.Text = card.ToString();
    }

    private void buttonShuffle_Click(object sender, EventArgs e)
    {
        deck.Shuffle();
    }
}

现在，当我按下交易按钮时，它会在按下 27 次后崩溃。我注意到它正在处理其他所有卡，例如 3 个梅花、5 个梅花、7 个梅花、9 个梅花等。

我好像找不到错误！如有任何帮助，我们将不胜感激！

编辑：这是我点击它超过 27 次时出现的错误：

Error

Answer 1

其实你的错误就来自于此。您正在发两张牌，而您只想发一张。

它正在崩溃，因为每次单击计数器时都会增加 2。 27 * 2 > 52 张卡片。

private void buttonDeal_Click(object sender, EventArgs e)
{
    Card card = deck.DealCard();
    deck.DealCard(); // error here. Duplicated line
    labelOutput.Text = card.ToString();
}

只有一半的纸牌被创造出来

Only Half of a Deck of Cards Being Created

c#

playing-cards