三子棋游戏（井字棋）

编写三子棋所需的步骤：

1）首先，我们得先要有一个棋盘，那我们就得先编写一个函数来将棋盘初始化，再编写一个函数负责打印我们的棋盘。

我们打印的棋盘为：

2）有了棋盘后，就可以下棋了。我们可以编写两个函数，一个是玩家下棋子，一个是电脑随机下棋子。

3）最后就是判断是谁赢得了比赛，还是平局。

这些就是三子棋的大致步骤了。

以下就是实现三子棋的程序：

头文件

#include<sanziqi.h>

#ifndef __SANZIQI_H__#define __SANZIQI_H__#define ROWS 3#define COLS 3#include<stdio.h>#include<stdlib.h>#include<time.h>void print_board(char board[ROWS][COLS], int rows, int cols);//打印棋盘void init_board(char board[ROWS][COLS], int rows, int cols);//清空棋盘void play_game(char board[ROWS][COLS]);//开始游戏void com_move(char board[ROWS][COLS]);//电脑走void player_move(char board[ROWS][COLS]);//玩家走char check_win(char board[ROWS][COLS]);//检测看谁获胜#endif //__SANZIQI_H__

主函数

#include"sanziqi.h"void menu(){printf("**************************\n");printf("******* 1.开始游戏 *******\n");printf("******* 0.退出游戏 *******\n");printf("**************************\n");}void game(){char board[ROWS][COLS] = {0 };print_board(board, ROWS, COLS);init_board(board, ROWS, COLS);play_game(board);com_move(board);player_move(board);check_win(board);}int main(){do{int input = 0;srand((unsigned)time(NULL));menu();printf("请选择：");scanf_s("%d", &input);switch(input){case 1:game();break;case 0:printf("退出游戏！！！\n");break;default:printf("输入错误，请重新输入！\n");break;}} while (1);return 0;}

功能实现

#include<game.c>

#include"sanziqi.h"void print_board(char board[ROWS][COLS], int rows, int cols){int i = 0;for (i = 0; i < ROWS; i++){printf(" %c | %c | %c \n", board[i][0], board[i][1], board[i][2]);if (i < ROWS-1){printf("---|---|---\n");}}}void init_board(char board[ROWS][COLS], int rows, int cols){int i = 0;int j = 0;for (i=0; i<rows; i++){for (j=0;j<cols; j++){board[i][j] = ' ';}}}void com_move(char board[ROWS][COLS]){int x = 0;int y = 0;while (1){x = rand() % 3;y = rand() % 3;if (board[x][y] == ' '){board[x][y] = 'O';return;}}}void player_move(char board[ROWS][COLS]){int x = 0;int y = 0;while (1){printf("请输入坐标：");scanf_s("%d%d", &x, &y);if (board[x - 1][y - 1] == ' '){board[x - 1][y - 1] = 'X';return;}else{printf("输入错误");}}}char check_win(char board[ROWS][COLS]){int i = 0;for (i = 0; i < 3; i++){if ((board[i][0] == board[i][1]) && (board[i][1] == board[i][2]) && (board[i][1] != ' ')){return 'p';}}for (i = 0; i < 3; i++){if ((board[0][i] == board[1][i]) && (board[1][i] == board[2][i]) && (board[1][i] != ' ')){return 'p';}}if ((board[0][0] == board[1][1]) && (board[1][1] == board[2][2]) && (board[1][1] != ' ')){return 'p';}if ((board[0][2] == board[1][1]) && (board[1][1] == board[2][0]) && (board[1][1] != ' ')){return 'p';}}void play_game(char board[ROWS][COLS]){char ret;int count = 0;while (1){if (count >= 9){printf("平局！！！！\n");break;}player_move(board);count++;print_board(board, ROWS, COLS);if ((ret = check_win(board)) == 'p'){printf("您获胜了！！！\n");break;}if (count >= 9){printf("平局！！！\n");break;}count++;printf("电脑走：\n");com_move(board);print_board(board, ROWS, COLS);if ((ret = check_win(board)) == 'p'){printf("电脑获胜！！！\n");break;}}}