三子棋 - 简易版

头文件 title.h

#define _CRT_SECURE_NO_WARNINGS 1

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

#define ROW 3
#define COL 3

void InitBoard(char board[ROW][COL], int row, int col);  //初始化棋盘

void DisplayBoard(char board[ROW][COL], int row, int col);  //打印棋盘

void PlayBoard(char board[ROW][COL], int row, int col, char set);  //玩家下棋

void ComputerBoard(char board[ROW][COL], int row, int col, char set);  //电脑下棋

char IsWin(char board[ROW][COL], int row, int col);  //判断输赢

int IsFull(char board[ROW][COL], int row, int col);  //判断棋盘是否满了

void menu();  //菜单

void game();  //游戏主程序

游戏程序 game.c

#define _CRT_SECURE_NO_WARNINGS 1

#include "title.h"

//初始化棋盘
void InitBoard(char board[ROW][COL], int row, int col)
{
	int i = 0;
	for (i = 0; i < row; i++)
	{
		int j = 0;
		for (j = 0; j < col; j++)
		{
			board[i][j] = ' ';
		}
	}
}

//展示棋盘
void DisplayBoard(char board[ROW][COL], int row, int col)
{
	int i = 0;
	for (i = 0; i < row; i++)
	{
		int j = 0;
		for (j = 0; j < col; j++)
		{
			printf(" %c ", board[i][j]);
			if (j < col - 1)
			{
				putchar('|');
			}
		}
		putchar('\n');
		if (i < row - 1)
		{
			int k = 0;
			for (k = 0; k < col; k++)
			{
				printf("___");
				if (k < col - 1)
				{
					putchar('|');
				}
			}
		}
		putchar('\n');
	}
}

void PlayBoard(char board[ROW][COL], int row, int col,char set)   //玩家下棋
{
	int x = 0;
	int y = 0;

	while (1)
	{
		printf("玩家，请你输入你的坐标(中间用空格隔开)：");
		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] = set;
				break;
			}
			else
			{
				printf("请玩家重新输入\n");
			}
		}
	}
}

void ComputerBoard(char board[ROW][COL], int row, int col, char set)  //电脑下棋
{
	int x = 0;
	int y = 0;

	while (1)
	{
		x = rand() % row;
		y = rand() % col;

		if (board[x][y] == ' ')
		{
			board[x][y] = '#';
			break;
		}
	}
}

int IsFull(char board[ROW][COL], int row, int col)  //判断棋盘是否满了
{
	int i = 0;

	for (i = 0; i < row; i++)
	{
		int j = 0;

		for (j = 0; j < col; j++)
		{
			if (board[i][j] == ' ')
			{
				return 0;
			}
		}
	}
	return 1;
}

char IsWin(char board[ROW][COL], int row, int col)  //判断输赢
{
	//3行
	for (int i = 0; i < row; i++)
	{
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
		{
			return board[i][0];
		}
	}

	//3列
	for (int j = 0; j < col; j++)
	{
		if (board[0][j] == board[1][j] && board[1][j] == board[2][j] && board[0][j] != ' ')
		{
			return board[0][j];
		}
	}

	//左斜对角
	if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[0][0] != ' ')
	{
		return board[0][0];
	}

	//右斜对角
	if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[0][2] != ' ')
	{
		return board[0][2];
	}

	//平局
	if ((IsFull(board, row, col)) == 1)
	{
		return 'P';
	}
	
	return 'C';  //既没有赢家，也没有平局，就继续游戏
}

void menu()  //菜单
{
	printf("---------------\n");
	printf("---0.游戏结束--\n");
	printf("---1.游戏开始--\n");
	printf("---------------\n");
}

void game()  //游戏主程序
{
	char board[ROW][COL] = { 0 };

	InitBoard(board, ROW, COL);  //初始化棋盘
	DisplayBoard(board, ROW, COL);

	char ret = 0;

	while (1)
	{
		PlayBoard(board, ROW, COL, '*');  //玩家下棋
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);

		if (ret != 'C')
		{
			break;
		}

		ComputerBoard(board, ROW, COL, '#');  //电脑下棋
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);

		if (ret != 'C')
		{
			break;
		}
	}

	if (ret == '*')
	{
		printf("玩家赢了\n");
	}
	else if (ret == '#')
	{
		printf("电脑赢了\n");
	}
	else
	{
		printf("平局\n");
	}
}

测试程序 test.c

#include "title.h"

int main()
{
	srand((unsigned int)time(NULL));

	int input = 0;

	do 
	{
		menu();
		printf("请输入你的选择：");
		scanf("%d", &input);

		switch (input)
		{
		case 1:
			printf("开始游戏吧\n");
			game();
			break;
		case 0:
			printf("游戏结束\n");
			break;
		default:
			printf("你的数组是错误的，请重新输入吧\n");
			break;
		}
	} while (input);

	return 0;
}