用了這好幾天的時間在閒暇時間寫了一個小時候玩的井字棋，或者叫三子棋的小遊戲，來娛樂娛樂，雖然是黑白框，並且電腦有點傻之外，一切良好。

         首先寫之前就要先明白思路，這個棋盤要放到一個二維數組裡面這樣才能更好的顯示出來，並且方便操作，先打印出來棋盤這是必須的，這就是基本的二維陣列的列印就好，把棋盤初始化為空格就好了，然後等到走的時候，拿相應的字元來代替就好了；電腦走的話就用隨機數來差生座標就好了，所以才說它傻；

先上程式碼：

標頭檔案 szq.h

<pre name="code" class="cpp">#define _CRT_SECURE_NO_WARNINGS 1

#ifndef __SZQ_GAME_H__
#define __SZQ_GAME_H__
#define ROWS 3
#define COLS 3


void init_board(char board[ROWS][COLS], int rows, int cols);
void print_board(char board[ROWS][COLS], int rows, int cols);
void play_game(char board[ROWS][COLS]);
char check_win(char board[ROWS][COLS]);
void player_move(char board[ROWS][COLS]);
void com_move(char board[ROWS][COLS]);

#endif 
 

#define _CRT_SECURE_NO_WARNINGS 1
#include "szq.h"
#include <stdio.h>
#include <time.h>
#include <stdlib.h>



void menu()
{
	printf("*************************\n");
	printf("*****    1.play    ******\n");
	printf("*****    0.exit    ******\n");
	printf("*************************\n");

}
void game()
{
	int input = 1;
	char board[ROWS][COLS] = { 0 };
	init_board(board, ROWS, COLS);
	while (input)
	{
		menu();
		printf("請選擇:");
		scanf("%d", &input);
		if (input == 1)
		{
			init_board(board, ROWS, COLS);
			print_board(board, ROWS, COLS);
			play_game(board);
		}

	}
}

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

#define _CRT_SECURE_NO_WARNINGS 1
#include "szq.h"
#include <stdio.h>
#include <stdlib.h>

void com_move(char board[ROWS][COLS])
{
	int x = 0;
	int y = 0;
	srand((unsigned)time(NULL));
	while (1)
	{
		x = rand() % 3;
		y = rand() % 3;
		if (board[x][y] == ' ')
		{
			board[x][y] = 'O';
			return;
		}
	}

}
void player_move(char board[ROWS][COLS])
{
	int x = 0;
	int y = 0;
	while (1)
	{
		printf("請輸入座標：");
		scanf("%d%d", &x, &y);
		if (board[x-1][y-1] == ' ')
		{
			board[x-1][y-1] = 'X';
			return;
		}
		else
		{
			printf("輸入錯誤");
		}
	}

}

char check_win(char board[ROWS][COLS])
{
	int i = 0;
	for (i = 0; i < 3; i++)
	{
		if ((board[i][0] == board[i][1]) && (board[i][1] == board[i][2]) && (board[i][1] != ' '))
		{
			return 'p';
		}
	}
	for (i = 0; i < 3; i++)
	{
		if ((board[0][i] == board[1][i]) && (board[1][i] == board[2][i]) && (board[1][i] != ' '))
		{
			return 'p';
		}
	}
	if ((board[0][0] == board[1][1]) && (board[1][1] == board[2][2]) && (board[1][1] != ' '))
	{
		return 'p';
	}
	if ((board[0][2] == board[1][1]) && (board[1][1] == board[2][0]) && (board[1][1] != ' '))
	{
		return 'p';
	}
}
void init_board(char board[ROWS][COLS], int rows, int cols)
{
	int i = 0;
	int j = 0;
	for (i = 0; i < rows; i++)
	{
		for (j = 0; j < cols; j++)
		{
			board[i][j] = ' ';
		}
	}
}
void print_board(char board[ROWS][COLS], int rows, int cols)
{
	int i = 0;
	for (i = 0; i < ROWS; i++)
	{
		printf(" %c | %c | %c \n", board[i][0], board[i][1], board[i][2]);
		printf("---|---|---\n");
	}
}
void play_game(char board[ROWS][COLS])
{
	char ret;
	int count = 0;
	while (1)
	{
		if (count >= 9)
		{
			printf("平局！！！！\n");
			break;
		}
		player_move(board);
		count++;
		print_board(board, ROWS, COLS);
		if ((ret = check_win(board)) == 'p')
		{
			printf("你獲勝了！！！！！\n");
			break;
		}
		if (count >=  9)
		{
			printf("平局！！！！\n");
			break;
		}
		count++;
		printf("電腦走：\n");
		com_move(board);
		
		print_board(board, ROWS, COLS);
		if ((ret = check_win(board)) == 'p')
		{
			printf("呵呵！！！\n");
			break;
		}
		
	}

}