C语言：三子棋小游戏

# define _CRT_SECURE_NO_WARNINGS
# include<stdio.h>
# include<stdlib.h>

# define MAX_ROW 3
# define MAX_COL 3

char chess_board[MAX_ROW][MAX_COL];

void init();
void printboard();
void playermove();
void computermove();
char CheckWinner();
void game();

int isfull()
{
	for (int row = 0; row < MAX_ROW; row++)
	{
		for (int col = 0; col < MAX_COL; col++)
		{
			if (chess_board[row][col] == ' ')
			{
				return 0;
			}
		}
	}
	return 1;
}



int main()
{
	game();
	system("pause");
	return 0;
}

void init()
{
	for (int row = 0; row < MAX_ROW; row++)
	{
		for (int col = 0; col < MAX_COL; col++)
		{
			chess_board[row][col] = ' ';
		}
	}
}

void printboard()
{
	for (int row = 0; row < MAX_ROW; row++)
	{
		printf("++++++------+++++-----\n");
		for (int col = 0; col < MAX_COL; col++)
		{
			printf("|%c|  ", chess_board[row][col]);
		}
		printf("\n");
	}
	printf("++++++------+++++-----\n");
}


void playermove()
{
	printf("玩家落子\n");
	while (1)
	{
		printf("请输入要落的位置：");
		int row = 0;
		int col = 0;
		scanf("%d，%d", &row, &col);
		if (chess_board[row][col] != ' ')
		{
			printf("该位置有子！请重新输入：\n");
			continue;
		}
		if (row < 0 || row > MAX_ROW || col < 0 || col > MAX_COL)
		{
			printf("您输入的位置超出棋盘，请重新输入：\n");
			continue;
		}
		chess_board[row][col] = 'x';
		break;
	}
}


void computermove()
{
	printf("电脑落子！\n");
	while (1)
	{
		int row = rand() % MAX_ROW;
		int col = rand() % MAX_COL;
		if (chess_board[row][col] != ' ')
		{
			continue;
		}
		chess_board[row][col] = 'o';
		break;
	}
}


char CheckWinner()
{
	for (int row = 0; row < MAX_ROW; row++)
	{
		if (chess_board[row][0] != ' ' && chess_board[row][0] == chess_board[row][1] && chess_board[row][0] == chess_board[row][2])
			return chess_board[row][0];
	}

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

	if (chess_board[0][0] != ' ' && chess_board[0][0] == chess_board[1][1] && chess_board[0][0] == chess_board[2][2])
		return chess_board[0][0];
	if (chess_board[2][0] != ' ' && chess_board[2][0] == chess_board[1][1] && chess_board[2][0] == chess_board[0][2])
		return chess_board[2][0];
	if (isfull())
		return 'h';
	return 'c';
}

void game()
{
	init();
	char P;
	while (1)
	{
		printboard();
		playermove();
		P = CheckWinner();
		if (P != 'c')
		{
			break;
		}
		computermove();
		P = CheckWinner();
		if (P != 'c')
		{
			break;
		}
	}
	printboard();
	if (P == 'x')
	{
		printf("你赢了！\n");
	}
	if (P == 'o')
	{
		printf("你输了!\n");
	}
	if (P == 'h')
	{
		printf("和局,再来一局！\n");
	}
}