c - 我的 C Blackjack 程序卡住了

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#include<stdlib.h>  
#include<stdio.h>
#include<time.h>

#define CARD_MAX 52
typedef int Deck[CARD_MAX];
Deck deck;
int cardnumber = 0;
int playerwin = 0, dealerwin = 0, tie = 0;

int game();
void setupDeck(Deck deck);
void shuffleDeck(Deck deck);
void printCard(int card);
int pickCard(Deck deck, int cardnum);
void endProgram();
void playAgain();

main()
{
    char yn;

    srand(time(NULL));
    setupDeck(deck);
    shuffleDeck(deck);

    again:
    printf("Welcome! Do you wanna try your luck in a Blackjack Game? If so type 'y'.\n");
    printf("If not type 'n' to close the program: ");
    scanf_s("%c", &yn);
    getchar();

    if (yn == 'y')
        game();

    else if (yn == 'n')
    {
        printf("Looks like you aren't feeling lucky today! Comeback tomorrow!\n");
        system("pause");
    }
    else
    {
        printf("Unknown character! Try again!\n");
        goto again;
    }


}

int game()
{
    int card, cardvalue = 0, cardtype = 0, tcvp = 0, tcvd = 0;
    int aceflagp = 0, faceflagp = 0, aceflagd = 0, faceflagd = 0, bjp = 0, bjd = 0;
    int loopcounter;
    char hitorpass;

    system("cls");
    printf("Your cards:\n");
    for (loopcounter = 0; loopcounter < 2; loopcounter++)
    {
        card = pickCard(deck, cardnumber);
        cardnumber++;
        cardvalue = card % 13;
        cardtype = card / 13;
        printCard(cardvalue, cardtype);
        if (cardvalue == 1)
        {
            aceflagp++;
            cardvalue = 11;
        }
        else if (cardvalue == 0 || cardvalue == 11 || cardvalue == 12)
        {
            faceflagp = 1;
            cardvalue = 10;
        }
        else
            cardvalue = cardvalue;

        tcvp += cardvalue;
    }
    if (aceflagp == 1 && faceflagp == 1)
        bjp = 1;

    printf("Dealers cards:\n");

    card = pickCard(deck, cardnumber);
    cardnumber++;
    cardvalue = card % 13;
    cardtype = card / 13;
    printCard(cardvalue, cardtype);
    if (cardvalue == 1)
    {
        aceflagd++;
        cardvalue = 11;
    }
    else if (cardvalue == 0 || cardvalue == 11 || cardvalue == 12)
    {
        faceflagd = 1;
        cardvalue = 10;
    }
    else
        cardvalue = cardvalue;

    tcvd += cardvalue;

    card = pickCard(deck, cardnumber);
    cardnumber++;
    cardvalue = card % 13;
    cardtype = card / 13;
    if (cardvalue == 1)
    {
        aceflagd++;
        cardvalue = 11;
    }
    else if (cardvalue == 0 || cardvalue == 11 || cardvalue == 12)
    {
        faceflagd = 1;
        cardvalue = 10;
    }
    else
        cardvalue = cardvalue;

    tcvd += cardvalue;

    if (aceflagd == 1 && faceflagd == 1)
        bjd = 1;

    if (bjp == 1 && bjd == 1)
    {
        printf("Both sides has Blackjack! Tie!\n");
        tie++;
        playAgain();
    }
    else if (bjp == 1)
    {
        printf("Player Blackjack!\n");
        playerwin++;
        playAgain();
    }
    else if (bjd == 1)
    {
        printf("Dealer Blackjack!\n");
        dealerwin++;
        playAgain();
    }
    printf("Your card total is %d.\n", tcvp);
    again:
    printf("If you want to hit type 'h'. If you want to pass type 'p'");
    scanf_s("%c", &hitorpass);
    getchar();

    if (hitorpass == 'h')
    {
        card = pickCard(deck, cardnumber);
        cardnumber++;
        cardvalue = card % 13;
        cardtype = card / 13;
        printCard(cardvalue, cardtype);
        if (cardvalue == 1)
        {
            aceflagp++;
            cardvalue = 11;
        }
        else if (cardvalue == 0 || cardvalue == 11 || cardvalue == 12)
        {
            faceflagp = 1;
            cardvalue = 10;
        }
        else
            cardvalue = cardvalue;

        tcvp += cardvalue;
        if (tcvp > 21)
        {
            if (aceflagp > 0)
            {
                tcvp -= 10;
                aceflagp--;
                printf("Your card total is %d.\n", tcvp);
                goto again;
            }
            else
            {
                printf("Your hand busted. You lost!\n");
                dealerwin++;
                playAgain();
            }
        }
        else if (tcvp == 21)
        {
            printf("You have 21 in your hand can't hit more!\n");
            goto dealersturn;
        }
        else if (tcvp < 21)
        {
            printf("Your card total is %d.\n", tcvp);
            goto again;
        }

    }
    else if (hitorpass == 'p')
    {
    dealersturn:
        printf("Dealers turn:\n");
        if (tcvd < 17)
        {
            card = pickCard(deck, cardnumber);
            cardnumber++;
            cardvalue = card % 13;
            cardtype = card / 13;
            printCard(cardvalue, cardtype);
            if (cardvalue == 1)
            {
                aceflagd++;
                cardvalue = 11;
            }
            else if (cardvalue == 0 || cardvalue == 11 || cardvalue == 12)
            {
                faceflagd = 1;
                cardvalue = 10;
            }
            else
                cardvalue = cardvalue;

            tcvd += cardvalue;
            if (tcvd > 21)
            {
                if (aceflagd > 0)
                {
                    tcvd -= 10;
                    aceflagd--;
                    goto dealersturn;
                }
                else
                {
                    printf("Dealers has a total of %d. Dealers hand busted!\n", tcvd);
                    playerwin++;
                    playAgain();
                }
            }
            else if (tcvd < 17)
                goto dealersturn;
            else
            {
                if (tcvp > tcvd)
                {
                    printf("Player has %d, dealer has %d. Player won!", tcvp, tcvd);
                    playerwin++;
                    playAgain();
                }
                else if (tcvp == tcvd)
                {
                    printf("Both player and the dealer has %d. Tie!", tcvd);
                    tie++;
                    playAgain();
                }
                else
                {
                    printf("Player has %d, dealer has %d. Dealer won!", tcvp, tcvd);
                    dealerwin++;
                    playAgain();
                }
            }
        }
    }
    else
    {
        printf("Unknown character. Try again!");
        goto again;
    }

    system("pause");
}

void endProgram()
{
    printf("Thanks for playing my blackjack game! The results are:\n");
    printf("Player won %d times!\n", playerwin);
    printf("Dealer won %d times!\n", dealerwin);
    printf("There have been a tie %d times!\n", tie);
    system("pause");
}

void playAgain()
{
    char chardummy;
    again:
    printf("Would you like to play again? Type 'y' for Yes and 'n' for No.\n");
    scanf_s("%c", &chardummy);
    getchar();
    if (chardummy == 'y')
    {
        if (cardnumber >= 48)
        {
            printf("There is not enough card left in the deck!");
            endProgram();
        }
        else
            game();
    }
    else if (chardummy == 'n')
        endProgram();
    else
    {
        printf("Unknown character. Try again!");
        goto again;
    }
}

void setupDeck(Deck deck)
{
    int i;
    for (i = 0; i<CARD_MAX; i++)
    {
        deck[i] = i;
    }
}

void shuffleDeck(Deck deck)
{
    for (int i = 52 - 1; i >= 0; --i) {
        int r = rand() % (i + 1);
        int t = deck[i];
        deck[i] = deck[r];
        deck[r] = t;
    }
}

void printCard(int cardvalue, int cardtype)
{
    char cardtype2;


    if (cardtype == 0)
        cardtype2 = 'C';
    else if (cardtype == 1)
        cardtype2 = 'D';
    else if (cardtype == 2)
        cardtype2 = 'H';
    else if (cardtype == 3)
        cardtype2 = 'S';

    switch (cardvalue)
{
    case 0:
    {
        printf("*******\n");
        printf("*     *\n");
        printf("* %c   *\n", cardtype2);
        printf("*   K *\n", cardvalue);
        printf("*     *\n");
        printf("*******\n");
        break;
    }
    case 1:
    {
        printf("*******\n");
        printf("*     *\n");
        printf("* %c   *\n", cardtype2);
        printf("*   A *\n");
        printf("*     *\n");
        printf("*******\n");
        break;
    }
    case 2:
    case 3:
    case 4:
    case 5:
    case 6:
    case 7:
    case 8:
    case 9:
    case 10:
    {
        printf("*******\n");
        printf("*     *\n");
        printf("* %c   *\n", cardtype2);
        printf("*  %2d *\n", cardvalue);
        printf("*     *\n");
        printf("*******\n");
        break;
    }
    case 11:
    {
        printf("*******\n");
        printf("*     *\n");
        printf("* %c   *\n", cardtype2);
        printf("*   J *\n", cardvalue);
        printf("*     *\n");
        printf("*******\n");
        break;
    }
    case 12:
    {
        printf("*******\n");
        printf("*     *\n");
        printf("* %c   *\n", cardtype2);
        printf("*   Q *\n", cardvalue);
        printf("*     *\n");
        printf("*******\n");
        break;
    }
    }
}

int pickCard(Deck deck, int cardnum)
{
    if (cardnumber == 52)
    {
        printf("There is not enough cards left to complete the game!");
        endProgram();
    }
    else
        return deck[cardnum];

}

这是我的简单二十一点游戏的代码。由于某种原因，经过几轮经销商轮流不起作用。如果您能找到原因，我将不胜感激，而我找不到原因。请随时提供有关改进我的代码的提示。

Answer 1

您的代码中存在以下问题，我可以从编译器警告/错误中看到这些问题。

1. printCard 的声明与其用法和实现不匹配。将声明更改为:

   void printCard(int cardvalue, int cardtype);
   

2. 明确 main 的返回类型。将其更改为:

   int main () ...
   

3. 更改打印 K、J 和 Q 的行。在这些行中，您不需要 printf 的附加参数。

   printf("*   K *\n");
   printf("*   J *\n");
   printf("*   Q *\n");
   

其中，第一个是最关键的修复。通过这些更改，我能够毫无问题地运行您的程序。我的测试平台:Linux，gcc 4.8.4。

提高警告级别，以便您可以检测此类警告/错误并在将来的编程工作中修复它们。