三子棋—思路分析+代码

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game.h

#ifndef __GAME_H__#define __GAME_H__#include<stdio.h>#include <stdlib.h>#include<string.h>#include <time.h>#define ROW 3#define COL 3void init_board(char board[ROW][COL], int row, int col);void display_board(char board[ROW][COL], int row, int col);void player_move(char board[ROW][COL], int row, int col);void computer_move(char board[ROW][COL], int row, int col);char check_win(char board[ROW][COL], int row, int col);#endif

game.c

#define _CRT_SECURE_NO_WARNINGS 1#include "game.h"void init_board(char board[ROW][COL], int row, int col){    memset(board, ' ', row*col*sizeof(char));}void display_board(char board[ROW][COL], int row, int col){    int i = 0;    for (i = 0; i < row; i++)    {        printf(" %c | %c | %c \n", board[i][0], board[i][1], board[i][2]);        if (i != 2)            printf("---|---|---\n");    }}void player_move(char board[ROW][COL], int row, int col){    int x = 0, y = 0;    printf("玩家走:\n");    while (1)    {        printf("请输入坐标：\n");        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] = 'X';                break;            }            else            {                printf("坐标被占用\n");            }        }        else        {            printf("坐标非法\n");        }    }}void computer_move(char board[ROW][COL], int row, int col){    int x = 0, y = 0;    printf("电脑走：\n");    while (1)    {        x = rand() % row;        y = rand() % col;        if (board[x][y] == ' ')        {            board[x][y] = '0';            break;        }    }}static int  check_full(char board[ROW][COL], int row, int col){    for (int i = 0; i < row; i++)    {        for (int j = 0; j < col; j++)        {            if (board[i][j] != ' ')                return 0;        }    }    return 1;}char check_win(char board[ROW][COL], int row, int col){    for (int i = 0; i < row; i++)    {        if ((board[i][0] == board[i][1]) && (board[i][1] == board[i][2]) && board[i][1]!=' ')        {            return board[i][0];        }    }    for (int i = 0; i < col; i++)    {        if ((board[0][i] == board[1][i]) && (board[1][i] == board[2][i]) && board[1][i] != ' ')        {            return board[0][i];        }    }    if ((board[0][0] == board[1][1]) && (board[1][1] == board[2][2]) && board[1][1] != ' ')        {            return board[0][0];        }    if ((board[2][0] == board[1][1]) && (board[1][1] == board[0][2]) && board[1][1] != ' ')    {        return board[2][0];    }    if (check_full(board, row, col))    {        return "q";    }    return ' ';}

test.c

#define _CRT_SECURE_NO_WARNINGS 1#include "game.h"void menu(){    printf("**************************\n");    printf("***1.开始       0.结束****\n");    printf("**************************\n");}void game(){    char ret = 0;    char board[ROW][COL] = { 0 };    init_board(board, ROW, COL);    display_board(board, ROW, COL);    while (1)    {        player_move(board, ROW, COL);        ret = check_win(board, ROW, COL);        if (ret != ' ')            break;        display_board(board, ROW, COL);        computer_move(board, ROW, COL);        ret = check_win(board, ROW, COL);        if (ret != ' ')            break;        display_board(board, ROW, COL);    }    if (ret =='X')    {        printf("玩家赢\n");    }    else if (ret == '0')    {        printf("电脑赢\n");    }    else if (ret == 'q')    {        printf("平局\n");    }}void test(){    int input = 0;    srand((unsigned)time(NULL));    do    {        menu();        printf("请选择：");        scanf("%d", &input);        switch (input)        {        case 1:            game();            break;        case 0:            printf("退出游戏\n");            break;        default:            printf("选择错误\n");            break;        }    } while (input);}int main(){    test();    return 0;}

- 首先需要大概了解三子棋的棋盘以3*3棋盘为例
- 棋盘为3*3，可以用一个二维数组board[3][3]来表示
- 第一步，初始化棋盘用函数Init_board
- 第二步，打印棋盘display_board
- 第三步，玩家选择下棋的坐标player_move，电脑随后随机下棋computer_move
- 第四步，判断输赢check_win
1，玩家赢
2，电脑赢
3，平局

不积跬步无以至千里，不积小流无以成江河

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