C语言写的三字棋当玩家输入后不知道为什么就直接就游戏结束了

Question

#define ROW 3
#define COL 3

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

void InitBoard(char board[ROW][COL], int row, int col);
void DisplayBoard(char board[ROW][COL], int row, int col);
void PlayerMove(char board[ROW][COL], int row, int col);
void ComputerMove(char board[ROW][COL], int row,int col );
char IsWin(char board[ROW][COL], int row, int col);

#define _CRT_SECURE_NO_WARNINGS

#include"game.h"
void InitBoard(char board[ROW][COL], int row, int col)//格式化棋盘
{
    int i = 0;
    int j = 0;
    for ( i = 0; i < row; i++)
    {
        for ( j = 0; j < col; j++)
        {
            board[i][j]=' ';
        }
    }
   
}
        

void DisplayBoard(char board[ROW][COL], int row, int col)//打印棋盘
{
    int i = 0;
    for (i = 0; i < row; i++)
    {
        int j = 0;
        for (j = 0; j < col; j++)
        {
            printf(" %c ", board[i][j]);
            if (j <col - 1)
            {
                printf("|");
            }
            
        }
        printf("\n");
        if (i < row - 1)
        {
            for (j = 0; j < col; j++)
            {
                printf("---");
                if (j < col - 1)
                {
                    printf("|");
                }
                
            }
            printf("\n");
        }
    }
}
void PlayerMove(char board[ROW][COL],int row,int col)//玩家移动
{
    int x = 0;
    int y = 0;
    printf("玩家走\n");
    while (1)
    {
        printf("请输入坐标行和列");
        scanf("%d%d", &x, &y);
        if (x >= 1 && x <= row && y >= 1 && y <= col)
        {
            if (board[x - 1][y - 1] == ' ')
            {
                board[x - 1][y - 1] = '*';
                break;
            }
            else
            {
                printf("坐标被占用\n");
            }
        }
        else
        {
            printf("坐标非法\n");
        }
        
    }
}

void ComputerMove(char board[ROW][COL], int row, int col)//电脑移动
{
    int x = 0;
    int y = 0;
    printf("电脑走\n");
    while(1)
    {
        x = rand() % row;
        y = rand() % col;
        if (board[x][y] ==' ')
        {
            board[x][y] ='#';
            break;
        }
        
    }
}
int IsFull(char board[ROW][COL], int row, int col)//判断是否已满
{
    int i = 0;
    int j = 0;
    for ( i = 0; i < row; i++)
    {
        for ( j = 0; j < col; j++)
        {
            if (board[i][j] == ' ')
            {
                return 0;
            }
        }
    }
    return 1;
}
char IsWin(char board[ROW][COL], int row, int col)//判断局势
{
    int i = 0;
    for (i = 0; i < row; i++)
    {
    if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' ')
    return board[i][1];
    }

    for (i = 0; i < col; i++)
    {
    if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[i][1] != ' ')
    return board[1][i];
    }
    
    if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[0][0] != ' ')
    return board[1][1];
    
    if (board[2][0] == board[1][1] && board[1][1] == board[0][2] && board[0][0] != ' ')
    return board[1][1];
    
    if (1==IsFull(board, ROW, COL))
    {
        return 'Q';
    }
    
    return 'C';
}

#define _CRT_SECURE_NO_WARNINGS
#include"game.h"
void menu()
{
    printf("**************三子棋**************\n");
    printf("********1.开始      0.退出********\n");
    printf("**********************************\n");
}
void game()
{
    char ret ='C';
    int x = 0;
    int y = 0;
    char board[ROW][COL] = { 0 };
    InitBoard(board, ROW, COL);//初始化
    DisplayBoard(board, ROW, COL);
    
    while(1)
    {
        PlayerMove(board, ROW, COL);//玩家移动
        DisplayBoard(board, ROW, COL);
        ret = IsWin(board, ROW, COL);
        if (ret!='C')
        {
            break;
        }

        ComputerMove(board, ROW, COL);//电脑移动
        DisplayBoard(board, ROW, COL);
        ret = IsWin(board, ROW, COL);
        if (ret!='C')
        {
            break;
        }
    }
    if (ret == '*')
    {
        printf("玩家赢\n");

    }
    else if (ret == '#')
    {
        printf("电脑赢\n");

    }
    else if(ret == 'Q')
    {
        printf("平局\n");
    }
    
}
void test()//开始界面判断
{
    int input = 0;
    srand((unsigned int)time(NULL));
    do
    {
        menu();
        printf("请输入：\n");
        scanf("%d", &input);
        switch (input)
        {
        case 1:
            printf("游戏开始\n");
            game();
            break;
        case 0:
            printf("退出\n");
            break;
        default:
            printf("选择错误，请重新选择\n");
            test();
            break;
        }
    } while (input);
    
}
int main()
{
    test();
    return 0;
}

Answer 1

下面是我的理解，不知道是不是找到了你问的那个问题，如下：
IsWin函数第四个if（ if (board[2][0] == board[1][1] && board[1][1] == board[0][2] && board[0][0] != ' '){）逻辑错误，改为： if (board[2][0] == board[1][1] && board[1][1] == board[0][2] && board[1][1] != ' ') 就可以了。因为是判断左下角到右上角一条斜线的落子，这一条斜线在坐标（0，0）落子时，此条斜线全为 ‘ ’空格，而坐标（0，0）又为'*'字符，所以导致条件满足，而返回了坐标（1，1）的空格字符‘ ’， 所以game函数里的while循环里的if条件满足，执行break，跳出了循环，然后再次开始了游戏。