用C语言编写一个简单的三子棋游戏，实现电脑与用户对弈

源代码：
头文件game.h

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<time.h>
#define ROW 3
#define COL 3
void InitBoard(char board[ROW][COL], int row, int col);
void PrintBoard(char board[ROW][COL], int row, int col);
void PlayerMove(char board[ROW][COL], int row, int col);
void ComputerMove(char board[ROW][COL], int row, int col);
char IsWin(char board[ROW][COL], int row,int col);

game.c

#include"game.h"
void InitBoard(char board[ROW][COL], int row, int col)
{
	memset(board, ' ', row*col);
}
//打印棋盘
void PrintBoard(char board[ROW][COL], int row, int col)
{
	int i = 0;
	for (i = 0; i <row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			printf(" %c ", board[i][j]);
			if (j < col - 1)
			{
				printf("|");
			}
		}
		printf("\n");
		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
{
	int x = 0;
	int y = 0;
	printf("玩家走->\n");
	while (1)
	{

		printf("请玩家选择所下棋子的坐标->");
		scanf("%d %d", &x, &y);
		if (x >= 1 && x <= row&&y >= 1 && y <= col)
		{
			if (board[x - 1][y - 1] == ' ')
			{
				board[x - 1][y - 1] = '*';
				break;
			}
			else
			{
				printf("坐标被占用!\n");
			}
		}
		else
		{
			printf("坐标不存在,请重新输入!\n");
		}
	}
}
void ComputerMove(char board[ROW][COL], int row, int col)
{
	int x = 0;
	int y = 0;
	printf("电脑走->\n");
	while (1)
	{
		x = rand() % row;
		y = rand() % col;
		if (board[x][y] == ' ')
		{
			board[x][y] = '#';
			break;
		}
	}
}
static IsFull(char board[ROW][COL], int  row, int col)
{
	int i = 0;
	int j = 0;
	for (i = 0; i < row; ++i)
	{
		for (j = 0; j < col; ++j)
		{
			if (board[i][j] == ' ')
			{
				return 0;
			}
		}
	}
	return 1;
}
char IsWin(char board[ROW][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	for (i = 0; i < row; ++i)//同行
	{
		j = 0;
		while (j < col)
		{
			if (board[i][0] == board[i][j])
			{
				j++;
			}
			else
				break;
		}
		if (j == col&&board[i][0] != ' ')
		{
			return board[i][0];
		}
	}
	for (j = 0; j < col; ++j)//同列
	{
		i = 0;
		while (i < row)
		{
			if (board[0][j] == board[i][j])
			{
				i++;
			}
			else
				break;
		}
		if (i == row&&board[0][j] != ' ')
		{
			return board[0][j];
		}
	}

	for (i = 0; i < row; ++i)//主对角线
	{
		if (board[0][0] == board[i][i])
		{
			continue;
		}
		else
			break;
	}
	if (i == row&&board[0][0] != ' ')
	{
		return board[0][0];
	}
	for (i = 0; i < row; ++i)//副对角线
	{
		j = row - 1 - i;
		if (board[0][row - 1] == board[i][j])
		{
			continue;
		}
		else
			break;
	}
	if (i == row&&board[0][row - 1] != ' ')
	{
		return board[0][row - 1];
	}
	if (IsFull(board, row, col) == 1)
	{
		return 'Q';
	}
	return 'C';
}

游戏测试test.c

#include"game.h"
void menu()
{
	printf("***************************\n");
	printf("*******   1.Play    *******\n");
	printf("*******   0.Exit    *******\n");
	printf("***************************\n");
}
void game()
{
	char ret = 0;
	char board[ROW][COL] = { 0 };
	InitBoard(board, ROW, COL);
	PrintBoard(board, ROW, COL);//打印棋盘
	while (1)
	{
		PlayerMove(board, ROW, COL);//用户下棋
		PrintBoard(board, ROW, COL);
		ret=IsWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		ComputerMove(board, ROW, COL);//电脑下棋
		PrintBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
	}
	if ('*' == ret)
	{
		printf("玩家赢!\n");
	}
	else if ('#' == ret)
	{
		printf("电脑赢!\n");
	}
	else if ('Q' == ret)
	{
		printf("平局!\n");
	}
}
void test()
{
	//调取函数菜单
	int input = 0;
	srand((unsigned)time(NULL));
	do
	{
		menu();
		printf("请输入你的选择：\n");
		scanf("%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");
			break;
		}
	} while (input);
}
		
	
int main()
{
	test();//测试三子棋
	system("pause");
	return 0;
}