三子棋

game.h
#ifndef __GAME_H__
#define __GAME_H__

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

#define ROWS  3
#define COLS  3

void game();
char check_win(char arr[ROWS][COLS], int rows, int cols);
static int is_full(char arr[ROWS][COLS], int rows, int cols);
void  init_board(char [ROWS][COLS], int rows, int cols);
void player_move(char arr[ROWS][COLS], int rows, int cols);
void computer_move(char arr[ROWS][COLS], int rows, int cols);

#endif

game.c
#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include"game.h"

void init_board(char arr[ROWS][COLS], int rows,int cols)
{
	int i = 0;
	{
		for (i = 0; i <= rows; i++)
		{
			printf("-------\n");
			if (i < rows)
			{
				printf("|%c|%c|%c|\n", arr[i][0], arr[i][1], arr[i][2]);
			}
		}
	}

}
static int  is_full(char arr[ROWS][COLS], int rows, int cols)
{
	int i = 0, j = 0;
	for (i = 0; i < rows; i++)
	{
		for (j = 0; j < cols; j++)
		{
			if (arr[i][j] == ' ')
				return 0;
		}
	}
	return 1;
}
char check_win(char arr[ROWS][COLS], int rows, int cols)
{
	int ret = 0;
	int i = 0;
	for (i = 0; i < rows; i++)
	{
		if ((arr[i][0] == arr[i][1]) 
			&&( arr[i][1] == arr[i][2])
			&&( arr[i][1] != ' '))
			return arr[i][0];
	}
	for (i = 0; i < cols; i++)
	{
		if ((arr[0][i] == arr[1][i])
			&&( arr[1][i] == arr[2][i])
			&&( arr[1][i] != ' '))
			return arr[0][i];
	}
	if ((arr[0][0] == arr[1][1])
		&&( arr[1][1] == arr[2][2])
		&&( arr[1][1] != ' '))
		return arr[1][1];
	if ((arr[0][2] == arr[1][1])
		&& (arr[1][1] == arr[2][0])
		&&( arr[1][1] != ' '))
		return arr[1][1];
	if (is_full(arr, rows, cols))
		return 'q';
	return ' ';
}
void computer_move(char arr[ROWS][COLS], int rows, int cols)
{
	while (1)
	{
		int x = rand() % 3;
		int y = rand() % 3;
		if (arr[x][y] == ' ')
		{
			arr[x][y] = '0';
			break;
		}
		
	}
}
void player_move(char arr[ROWS][COLS], int rows, int cols)
{
	while (1)
	{

		int i = 9;
		int j = 5;

		printf("输入坐标：");
		scanf("%d %d", &i, &j);//i,j前面要加&
		if ((i <= 3) && (j <= 3))
		{
			i--;
			j--;

			if (arr[i][j] == ' ')
			{
				arr[i][j] = '*';
				break;
			}
			else
			{
				printf("重新输入这有棋子\n");
			}
		}
		else
		{
			printf("输入有误重新输入\n");
		}
	}
}


test.c

#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#include"game.h"
void menu()
{
 printf("*******1.play**********\n");
 printf("*******0.exit**********\n");
}
void game()
{
 char ret=1;
 int rows = 3;
 int cols = 3;
 /*
 char arr[ROWS][COLS] = { ' ' };*/
  /*{ { ' ', ' ', ' ' },
 { ' ', ' ', ' ' },
 { ' ', ' ', ' ' }, };*///初始化数组
 char arr[ROWS][COLS] = { ' '};
 for (int i = 0; i < 3; i++)
 {
  for (int j = 0; j < 3; j++)
  {
   arr[i][j] = ' ';
  }
 }
 srand((unsigned int)time(NULL));
 //init_board( arr,rows, cols);//显示数组
 while (1)
 {
  printf("电脑走：\n");
  computer_move(arr, rows, cols);
  if ((ret = check_win(arr, rows, cols)) != ' ')
   break;
  init_board(arr, rows, cols);
  printf("玩家走:\n");
  player_move(arr, rows, cols);
  if ((ret =check_win(arr, rows, cols)) != ' ')
   break;
  init_board(arr, rows, cols);
 }
 if (ret == '0')
  printf("电脑赢\n");
 else if (ret == '*')
  printf("玩家赢\n");
 else if (ret == 'q')
  printf("平局\n");
 init_board(arr, rows, cols);
}
int main()
{
 int input=0;
 do
 {
  menu();
printf("请输入\n");
  scanf("%d", &input);
  switch (input)
  {
  case 1: 
      game(); break;
  case 0: 
     ; break;
  default:
      printf("输入有误\n"); break;
  }
 } while (input);
   return 0;
}