三子棋

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define ROW 3
#define COL 3
void init_board(char arr[ROW][COL]);
void displar_board(char arr[ROW][COL]);
void play_move(char arr[ROW][COL]);
void comper_move(char arr[ROW][COL]);
char check_win(char arr[ROW][COL]);
int is_full(char arr[ROW][COL]);
void windows();
void memu();
int main(){
	int choice = 1;
	while (choice){
		memu();
		scanf("%d",&choice);
		switch (choice){
		case 1:windows(); break;
		case 0:break;
		}
	}
	return 0;
}

void windows(){
	char ret = 0;
	char arr[3][3] = { 0 };
	init_board(arr);
	displar_board(arr);
	do{
		play_move(arr);
		printf("你落子后：\n");
		displar_board(arr);
		ret = check_win(arr);
		if (ret != ' ')
			break;
		comper_move(arr);
		printf("电脑落子后：\n");
		displar_board(arr);
		ret = check_win(arr);
	} while (ret == ' ');
	if (ret == 'x')
		printf("你赢了！\n");
	else if (ret == '0')
		printf("电脑赢了!\n");
	else
		printf("平局!\n");
	system("pause");
}
void memu(){
	printf("1-- - 开始，0--- 结束\n");
}
void init_board(char arr[ROW][COL]){
	int i = 0;
	int j = 0;
	for (i = 0; i <ROW; i++){
		for (j = 0; j < COL; j++){
			arr[i][j] = ' ';
		}
	}
}
void displar_board(char arr[ROW][COL]){
	int i = 0;
	printf("\n    1   2   3 \n");
	for (i = 0; i < ROW; i++){
		printf("%d | %c | %c | %c |\n", i + 1, arr[i][0], arr[i][1], arr[i][2]);
		if (i != 2)
			printf("  |---|---|---|\n");
	}
}
void play_move(char arr[ROW][COL]){
	int x = 0;
	int y = 0;
	while (1){
		printf("输入要下的坐标->ROW(1-3),COL(1-3) :");
		scanf("%d%d", &x, &y);
		x--;
		y--;
		if ((x >= 0 && x<3) && (y >= 0 && y < 3)){
			if (arr[x][y] == ' '){
				arr[x][y] = 'x';
				break;
			}
			else
				printf("该位置已落子\n");
		}
		else
			printf("坐标非法\n");
	}
}
void comper_move(char arr[ROW][COL]){
	int x = 0;
	int y = 0;
	srand((unsigned)time(NULL));
	while (1){
		if (is_full(arr) == 1){
			printf("full\n");
			break;
		}
		x = rand() % 3;
		y = rand() % 3;
		if (arr[x][y] == ' '){
			arr[x][y] = '0';
			break;
		}
	}
}
char check_win(char arr[ROW][COL]){
	int i = 0;
	for (i = 0; i < ROW; i++)
		if (arr[i][0] == arr[i][1] && arr[i][1] == arr[i][2] && arr[i][0] != ' ')
			return arr[i][0];
	for (i = 0; i < ROW; i++)
		if (arr[0][i] == arr[1][i] && arr[1][i] == arr[2][i] && arr[0][i] != ' ')
			return arr[0][i];
	if (arr[0][0] == arr[1][1] && arr[1][1] == arr[2][2] && arr[0][0] != ' ')
		return arr[0][0];
	if (arr[0][2] == arr[1][1] && arr[1][1] == arr[2][0] && arr[0][2] != ' ')
		return arr[0][2];
	if (is_full(arr) == 1)
		return 'e';
	return ' ';
}
int is_full(char arr[ROW][COL]){
	int i = 0;
	int j = 0;
	for (i = 0; i < ROW; i++){
		for (j = 0; j < COL; j++){
			if (arr[i][j] == ' '){
				return 0;
			}
		}
	}
	return 1;
}