[C++知识库]C语言实现井字棋

C语言实现井字棋
详解在注释上，直接贴代码
这是头文件game.h

#pragma once

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


#define ROW 3 
#define COL 3
//为了方便修改棋盘大小以及玩法，可以修改为5玩五子棋

//初始化棋盘
void InitBoard(char board[ROW][COL],int row,int col);
//打印棋盘
void DisplayBoard(char board[ROW][COL], int row, int col);
//玩家下棋
void PlayerMove(char board[ROW][COL], int row, int col);
//电脑下棋
void ComputerMove(char board[ROW][COL], int row, int col);

//判断游戏输赢
//返回四种的不同的状态
//返回*则玩家赢，返回#则电脑赢，返回C则继续，返回其他值则平局
char IsWin(char board[ROW][COL], int row, int col);

.c文件

#define _CRT_SECURE_NO_WARNINGS 1
#include "game.h"

void InitBoard(char board[ROW][COL], int row, int col)//对棋盘中的位置(二维数组)进行初始化，置为空格
{
	for (int i = 0; i < row; ++i)
	{
		for (int j = 0; j < col; ++j)
		{
			board[i][j] = ' ';
		}
	}
}

void DisplayBoard(char board[ROW][COL], int row, int col)//设置棋盘
{
	for (int i = 0; i < row; ++i)
	{
		//打印数据
		for (int j = 0; j < col; ++j){
			printf(" %c ", board[i][j]);
			if (j<row - 1)
			printf("|");
		}
		printf("\n");
		//打印分割行
		if (i < row - 1){
			for (int j = 0; j < col; ++j){
				printf("---");
				if (j<col-1)
				printf("|");
			}
		}
		printf("\n");
	}
}

void PlayerMove(char board[ROW][COL], int row, int col)//玩家下棋
{
	printf("玩家走\n");
	int x, y;
	while (1)
	{
		printf("请输入坐标:>");
		scanf("%d %d", &x, &y);
		//判断该坐标是否在棋盘内
		if (x >= 1 && x <= row&&y >= 1 && y <= col)//不以0起始点为棋盘坐标，以1为起始点
		{
			if (board[x - 1][y - 1] == ' ')//如果该位置没有下过棋子，则可以下棋
			{
				board[x - 1][y - 1] = '*';
				break;//下完棋了，跳出循环
			}
			else//如果下过了，则重新输入坐标
			{
				printf("坐标被占用，请重新输入\n");
			}
		}
		else//不在棋盘内，重新输入坐标
		{
			printf("坐标非法，超出范围，请重新输入\n");
		}
	}
}

void ComputerMove(char board[ROW][COL], int row, int col)//电脑下棋
{
	printf("电脑走\n");
	int x, y;
	while (1){
		x = rand() % row;//利用时间戳，产生随机位置
		y = rand() % col;
		if (board[x][y] == ' ')//验证该位置是否为空
		{
			board[x][y] = '#';
			break;
		}
	}

}

char IsWin(char board[ROW][COL], int row, int col)//判断输赢
{
	
	if ((board[0][0] == board[0][1] && board[0][2] == board[0][1] && board[0][1]!=' ')
		|| (board[1][0] == board[1][1] && board[1][2] == board[1][1] && board[1][1] != ' ')
		|| (board[2][0] == board[2][1] && board[2][2] == board[2][1] && board[2][1] != ' ')
		|| (board[0][0] == board[1][0] && board[2][0] == board[1][0] && board[0][0] != ' ')
		|| (board[0][1] == board[1][1] && board[2][1] == board[1][1] && board[0][1] != ' ')
		|| (board[0][2] == board[1][2] && board[2][2] == board[1][2] && board[0][2] != ' ')
		|| (board[0][0] == board[1][1] && board[2][2] == board[1][1] && board[1][1] != ' ')
		|| (board[0][2] == board[1][1] && board[2][0] == board[1][1] && board[1][1] != ' ')
		)//因为是三子棋，所以这里直接暴力核查
		return board[0][0];
	for (int i = 0; i < row; ++i)
	for (int j = 0; j < col; ++j)
	if (board[i][j] == ' ')
		return 'c';//既没有人获胜，也没有平局，则继续下棋
	return 0;//平局
}

主函数

#define _CRT_SECURE_NO_WARNINGS 1
#include "game.h"
void game()
{
	char board[ROW][COL];//创建棋盘

	//初始化棋盘
	InitBoard(board,ROW,COL);

	//打印棋盘
	DisplayBoard(board, ROW, COL);
	char ret;//用于判断是否结束
	//下棋
	while (1)
	{
		PlayerMove(board, ROW, COL);//玩家下棋
		DisplayBoard(board, ROW, COL);//打印棋盘
		ret = IsWin(board, ROW, COL);//判断是否有人获胜或者平局
		if (ret != 'c')
		{
			break;
		}
		ComputerMove(board, ROW, COL);//电脑下棋
		DisplayBoard(board, ROW, COL);//打印棋盘
		ret = IsWin(board, ROW, COL);//判断是否有人获胜或者平局
		if (ret != 'c')
		{
			break;
		}
	}
	if (ret == '*')
	{
		printf("你赢了\n");
	}
	else if (ret == '#')
	{
		printf("电脑赢了，你输了\n");
	}
	else
	{
		printf("平局\n");
	}

}
void menu()
{
	printf("**********************************\n");
	printf("************  1. van游戏  ********\n");
	printf("************  0. 不van了  ********\n");
	printf("**********************************\n");

}
int main()
{
	srand((unsigned int)time(NULL));//时间戳
	do//选用do  while循环
	{
		menu();//菜单
		printf("请选择");
		int input = 0;
		scanf("%d",&input);
		switch (input)//对于输入值进行判断，可见menu()
		{
		case 1:
			printf("三字棋\n");
			game();
			break;
		case 0:
			printf("那就不van了\n");
			break;
		default://选择错误
			printf("给爷重选\n");

		}
	} while (1);
	return 0;
}