三子棋（用C语言写）

三子棋分为三个板块分别是:

* test.c (主函数)

* game.c(游戏部分代码实现)

* game.h(头文件，宏定义，函数的声明)

test.c

#include"game.h"
void menu()
{
    
	printf("###########################\n");
	printf("##### 1.play #######\n");
    printf("##### 0.exit #######\n");
	printf("###########################\n");
}//打印三子棋目录

void game()
{
    
	int ret = 0;
	char board[ROW][COL] = {
    0};
	init_board(board, ROW, COL);//初始化表格
	display_board(board, ROW, COL);//打印表格
	while (1)
	{
    
		player_move(board, ROW, COL);//玩家输入坐标
		display_board(board, ROW, COL);//打印表格

		ret = is_win(board, ROW, COL);//判断对局情况
		if (ret != 'C')
			break;

		computer_move(board, ROW, COL);//电脑输入坐标
		display_board(board, ROW, COL);//打印表格

		ret = is_win(board, ROW, COL);//判断对局情况
		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");
	}
	display_board(board, ROW, COL);//打印对局结束的表格
}
int main()
{
    
	int input = 0;
	srand((unsigned int)time(NULL));//产生随机数
	do
	{
    
	menu();
	printf("请输入》：\n");
	scanf_s("%d", &input);
	
		switch (input)//判断游戏的开始
		{
    
		case 1:
			game();
			break;
		case 0:
			printf("退出游戏");
			break;
		default :
			printf("输入错误，请重新输入：\n");
		}
	} while (input);
	return 0;
}

game.c

#include"game.h"

void init_board(char board[ROW][COL], int row, int col)
{
    //打印空格
	int i = 0;
	int j = 0;
	for (i = 0; i < ROW; i++)
	{
    
		for (j = 0; j < COL; j++)
		{
    
			board[i][j] = ' ';
		}
	}
}
void display_board(char board[ROW][COL], int row, int col)
{
    //打印表格
	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)//会出现少 | 的情况
				printf("|");
		}
		printf("\n");
		//printf(" | | \n")
		if (i < row - 1)
		{
    
			//printf("---|---|---\n");
			for (j = 0; j < col; j++)
			{
    
				printf("---");
				if (j < col - 1)
					printf("|");
			}
			printf("\n");
		}
	}
}

void player_move(char board[ROW][COL], int row, int col)
{
    //玩家输入坐标
	int i = 0;
	int j = 0;
	printf("玩家请下棋：");
	scanf_s("%d %d", &i, &j);
	printf("\n");
	while (1)
	{
    
		if (i >= 1 && i <= ROW && j >= 1 && j <= COL)
		{
    
			if (board[i - 1][j - 1] == ' ')
			{
    
				board[i - 1][j - 1] = '*';
				break;
			}
			else
			{
    
				printf("你输入的地方已被占用");
			}
		}
		printf("你输入的值有误");
	}
}

void computer_move(char board[ROW][COL], int row, int col)
{
    //电脑输入坐标
	
	while (1)
	{
    
		int i = rand() % ROW;
		int j = rand() % COL;
		if (board[i][j] == ' ')
		{
    
			board[i][j] = '#';
			break;
		}
	}
	printf("电脑下棋\n");
}

static int is_full(char board[ROW][COL], int row, int col)
{
    //判断位置是否全部占用，static是防止跨文件访问
	int i = 0;
	for (i = 0; i < row; i++)
	{
    
		int j = 0;
		for (j = 0; j < col; j++)
		{
    
			if (' ' == board[i][j])
			{
    
				return 0;
			}
		}
	}
	return 1;
}

char is_win(char board[ROW][COL], int row, int col)
{
    //判断对局情况，分为三行三列两斜
	int i = 0;
	for (i = 0; i < row; i++)
	{
    
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
		{
    
			return board[i][0];
		}
	}

	for (i = 0; i < col; i++)
	{
    
		if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[0][i] != ' ')
		{
    
			return board[0][i];
		}
	}

	if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[1][1] != ' ')
	{
    
		return board[1][1];
	}

	if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[1][1] != ' ')
	{
    
		return board[1][1];
	}

	//判断平局
	if (is_full(board, row, col) == 1)
	{
    
		return 'Q';
	}
	//继续
	return 'C';
}

表格打印图片

game.h

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

#define ROW 3//使用宏更容易修改
#define COL 3

extern void init_board(char board[ROW][COL], int row, int col);
extern void display_board(char board[ROW][COL],int row,int col); 
extern void player_move(char board[ROW][COL], int row, int col);
extern void computer_move(char board[ROW][COL], int row, int col);
extern char is_win(char board[ROW][COL], int row, int col);

游戏演示

最后：文章有什么不对的地方或者有什么更好的写法欢迎大家在评论区指出来。