三子棋源代码

编译环境：我用的是VS2013，更高级的版本也是可以的。

  创建三个文件，头文件game.h，两个源文件game.c和test.c，头文件game.h，主要是函数的各种声明，源文件game.c中主要是三子棋算法的实现，源文件test.c中主要是main函数，函数的主体部分。

头文件game.h

#define ROW 3
#define COL 3

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

void InitBoard(char board[ROW][COL], int row, int col);
void DisplayBoard(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);

//玩家赢 *
//电脑赢 #
//平局 Q
//继续 C
char IsWin(char board[ROW][COL], int row, int col);

源文件game.c

#define _CRT_SECURE_NO_WARNINGS
#include "game.h"
#include <stdio.h>

void InitBoard(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++)
		{
			board[i][j] = ' ';
		}
	}
}

void DisplayBoard(char board[ROW][COL], int row, int col)
{
	int i = 0;
	for (i = 0; i < row; i++)
	{
		//1.打印数据
		int j = 0;
		for (j = 0; j < col; j++)
		{
			printf(" %c ", board[i][j]); 
			if (j < col - 1)
			{
				printf("|");
			}
		}
		printf("\n");
		
		//2.打印分割行
		if (i < row - 1)
		{
			for (j = 0; j < col; j++)
			{
				printf("---");
				if (j < col - 1)
				{
					printf("|");
				}
			}
			printf("\n");
		}
	}
}

void PlayerMove(char board[ROW][COL], int row, int col)
{
	int x = 0;
	int y = 0;
	printf("玩家走：>\n");
	while (1)
	{
		printf("请输入要下的坐标：>");
		scanf("%d %d", &x, &y);
		//判断xy坐标的合法性
		if (x >= 1 && x <= row && y >= 1 && y <= col)
		{
			if (board[x - 1][y - 1] ==  ' ')
			{
				board[x - 1][y - 1] = '*';
				break;
			}
			else
			{
				printf("该坐标被占用\n");
			}

		}
		else
		{
			printf("坐标非法，请重新输入");
		}
	}
}

void ComputerMove(char board[ROW][COL], int row, int col)
{
	int x = 0;
	int y = 0;
	printf("电脑走：>\n");
	//生成随机横纵坐标
	while (1)
	{
		x = rand() % row;
		y = rand() % col;
		if (board[x][y] == ' ')
		{
			board[x][y] = '#';
			break;
		}
	}
}

//返回1 棋盘满了
//返回0 棋盘没满
int 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;//没满
			}
		}
	}
	return 1;//满了
}

char IsWin(char board[ROW][COL], int row, int col)
{
	int i = 0;
	//横赢
	for (i = 0; i < row; i++)
	{
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' ')
		{
			return board[i][1];
		}
	}
	//竖赢
	for (i = 0; i < col; i++)
	{
		if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[1][i] != ' ')
		{
			return board[1][i];
		}
	}
	//斜着赢
	if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[1][1] != ' ')
	{
		return board[1][1];
	}
	if (board[2][0] == board[1][1] && board[1][1] && board[0][2] && board[1][1] != ' ')
	{
		return board[1][1];
	}
	//判断是否平局
	if (1 == IsFull(board, ROW, COL))
	{
		return 'Q';
	}
	//继续
	return 'C';
}

源文件test.c

//测试三子棋游戏
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include "game.h"

void menu()
{
	printf("**************************************************\n");
	printf("***************欢迎来到三子棋游戏*******************\n");
	printf("*************** 1.play ***************************\n");
	printf("*************** 0.exit ***************************\n");
	printf("**************************************************\n");
	printf("**************************************************\n");
}

//游戏算法实现
void game()
{
	char ret = 0;
	//数组-存放走出的棋盘信息
	char board[ROW][COL] = {0};
	//初始化棋盘
	InitBoard(board, ROW, COL);
	//打印棋盘
	DisplayBoard(board, ROW, COL);
	//下棋
	while (1)
	{
		//玩家下棋
		PlayerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		//判断玩家是否赢
		ret = IsWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		//电脑下棋
		ComputerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		//判断电脑是否赢
		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
	{
		printf("平局！\n");
	}
}

void test()
{
	int input = 0;
	srand((unsigned int)time(NULL));
	do
	{
		menu();
		printf("请选择：>");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();
			break;
		case 0:
			printf("退出游戏\n");
			break;
		default:
			printf("输入有误，请重新输入！\n");
			break;
		}
	} while (input);
}

int main()
{
	test();
	return 0;
}