三子棋

三子棋的规则如下：在九宫格棋盘上，只要将自己的三个棋子走成一条线，例如：横线，竖线，对角线，自己也就赢了，对方算输。

 

实现以下功能：
1.棋盘初始化；
2.打印棋盘；
3.玩家下棋；
4.电脑下棋；
5.判断输赢；
代码如下：
1.game.h函数的定义

#ifndef   __GAME__H_
#define  __GAME__H_
#define ROW 3
#include

void InitBoard(char board[][ROW], int row, int col);//初始化棋盘
void ShowBoard(char board[][ROW], int row, int col);//打印棋盘
void PlayerrMove(char board[][ROW], int row, int col);//玩家下棋
void ComputerMove(char board[][ROW], int row, int col);//电脑下棋
char Win(char board[][ROW], int row, int col);//判断输赢
#endif

2.源文件test.c用于存放主函数  （测试部分）：

#define _CRT_SECURE_NO_WARNINGS
#include"game.h"
void menu()
{
	printf("*******************\n");
	printf("******0.exit*******\n");
	printf("******1.play*******\n");
	printf("*******************\n");
}
void game()
{
	char ret = 0;
	char board[ROW][ROW] = { 0 };// '0'  '\0'   0   NULL
	InitBoard(board, ROW, ROW, ' ');
	ShowBoard(board, ROW, ROW);
	while (1)
	{
		PlayerMove(board, ROW, ROW);//玩家每走一步，需要判断输赢
		ret = IsWin(board, ROW, ROW);
		if (ret != ' ')
		{
			//平局或者一方胜出
			break;
		}
		ShowBoard(board, ROW, ROW);
		//电脑走
		ComputerMove(board, ROW, ROW);
		ret = IsWin(board, ROW, ROW);
		if (ret != ' ')
		{
			//平局或一方胜出
			break;
		}
		ShowBoard(board, ROW, ROW);
	}
	//判断ret
	if (ret == 'x')
	{
		printf("玩家胜出\n");
	}
	if (ret == 'O')
	{
		printf("电脑胜出\n");
	}
	if (ret == 'Q')
	{
		printf("平局\n");
	}
}
int main()
{
	int input = 0;
	do
	{
		menu();
		printf("请输入您的选择：-》");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			printf("游戏开始\n");
			game();
			break;
		case 0:
			printf("游戏退出\n");
			break;
		default:
			printf("请输入正确的操作\n");
			break;
		}
	} 
	while (input);
	system("pause");
	return 0;
}

3.源文件game.c 函数部分：

#define _CRT_SECURE_NO_WARNINGS 
#include"game.h"    
void InitBoard(char board[][ROW], int row, int col, char set)
{
	int i, j;
	for (i = 0; i < row; i++)
	{
		for (j = 0; j < row; j++)
		{
			board[i][j] = ' ';
		}

	}
}
void ShowBoard(char board[][ROW], int row, int col)
{
	int i, j;
	for (i = 0; i < row; i++)
	{
		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], int row, int col)
{
	int x=0, y=0;//x,y为输入的坐标
	while (1)
	{
		printf("玩家移动\n");
		printf("请输入1-3的坐标:\n");
		scanf("%d%d", &x, &y);
		if (x >= 1 && x <= 3 && y >= 1 && y <= 3)
		{
			if (board[x - 1][y - 1] == ' ')
			{
				board[x - 1][y - 1] = 'x';
				break;
			}
			else
			{
				printf("位置已经被占用，请重新输入\n");
			}
		}
		else
		{
			printf("坐标不合法\n");
		}
	}
}
static int IsFull(char board[][ROW], int row, int col)//判断棋盘是否满了
{
	int i, j;
	for (i = 0; i < row; i++)
	{
		for (j = 0; j < col; j++)
		{
			if (board[i][j] == ' ')
			{
				return 0;//没有满
			}
		}
	}
	return 1;//棋盘已满
}
void ComputerMove(char board[][ROW], int row, int col)
{
	int x = 0, y= 0;
	printf("电脑移动\n");
	while (1)
	{
		x = rand() % ROW;
		y = rand() % ROW;
		if (board[x][y] == ' ')
		{
			board[x][y] = 'O';
			break;
		}
	}
}
char IsWin(char board[][ROW], int row, int col)//判断有没有一行或者一列或者对角线一样
{
	int i;
	for (i = 0; i < row; i++)
	{//行
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
		{
			return board[i][0];
		}
		//列
		if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[0][i] != ' ')
		{
			return board[0][i];
		}
		//对角线
		if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[0][0] != ' ')
		{
			return board[0][0];
		}
		if (board[0][2] == board[1][1] && board[1][1]==board[2][0] && board[0][2] != ' ')
		{
			return board[0][2];
		}
		if (IsFull(board, ROW, ROW))
		{
			return 'Q';//平局
		}
	}
	return ' ';//谁也没赢
}