C语言：实现三子棋

C语言：实现三子棋

思路:三子棋顾名思义就是五子棋的延申，C语言实现三子棋需要先给用户展示使用界面，使用界面必须简单易懂，让他们能够去选择，其次是三子棋是人机大战，需要电脑和用户共同完成，所以写电脑的移动是可以以随机数生成坐标的形式来实现，无论是电脑移动和用户移动时，都要对坐标以判断，看是不是可以走，然后就是判断输赢了，以横竖对角线相等来判断输赢和平局，最后给用户一个显示界面供用户查看判断。

以下是源代码:

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <windows.h>
#include <time.h>
#define ROW 3
#define COL 3
void ShowUI()
{
	printf("##################################\n");
	printf("## 1. Play              2. Exit ##\n");
	printf("##################################\n");
	printf("Please Select:> ");
}
void ComputerMove(char board[][COL], int row, int col)
{
	while (1){
		int x = rand() % row;
		int y = rand() % col;
		if (board[x][y] == ' '){
			board[x][y] = 'O';
			break;
		}
	}
}
void PlayerMove(char board[][COL], int row, int col)
{
	int x, y;
	while (1){
		printf("Please Enter Your Pos(x,y):>  ");
		scanf("%d %d", &x, &y);
		if (x >= 1 && x <= row && y >= 1 && y <= col){
			if (board[x - 1][y - 1] == ' '){
				board[x - 1][y - 1] = 'X';
				break;
			}
			else{
				printf("Enter Pos Is Not OK, Try Again!\n");
			}
		}
		else{
			printf("Enter Error, Try Again!\n");
		}
	}
}
char Judge(char board[][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	for (; i < row; i++){
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && \
			board[i][0] != ' '){
			return board[i][0];
		}
	}
	for (i = 0; i < col; i++){
		if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && \
			board[0][i] != ' '){
			return board[0][i];
		}
	}
	if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && \
		board[1][1] != ' '){
		return board[1][1];
	}
	if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && \
		board[1][1] != ' '){
		return board[1][1];
	}

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

void ShowBoard(char board[][COL], int row, int col)
{
	printf("    1   2   3\n");
	printf("-----------------\n");
	int i = 0;
	int j = 0;
	for (; i < row; i++){
		printf("%d |", i + 1);
		for (j = 0; j < col; j++){
			printf(" %c |", board[i][j]);
		}
		printf("\n-----------------\n");

	}
	printf("\n");
}
void Game()
{
	char board[ROW][COL];
	memset(board, ' ', sizeof(board));
	char result = 'N';
	srand((unsigned long)time(NULL));

	while (1){
		system("cls");
		ComputerMove(board, ROW, COL);
		ShowBoard(board, ROW, COL);
		result = Judge(board, ROW, COL);
		if (result != 'N'){//'X' 'O' 'E' 'N'
			break;
		}
		PlayerMove(board, ROW, COL);
		ShowBoard(board, ROW, COL);
		result = Judge(board, ROW, COL);
		if (result != 'N'){//'X' 'O' 'E' 'N'
			break;
		}
	}
	switch (result){
	case 'X':
		printf("You Win! :)\n");
		break;
	case 'O':
		printf("You Lose, Computer Win! :(\n");
		break;
	case 'E':
		printf("平局，恭喜！\n");
		break;
	default:
		break;
	}
}
int main()
{
	int select = 0;
	int quit = 0;
	while (!quit){
		ShowUI();
		scanf("%d", &select);
		switch (select){
		case 1:
			Game();
			break;
		case 2:
			printf("I Am Quit!\n");
			quit = 1;
			break;
		default:
			printf("Select Error! Try Again!\n");
			break;
		}
	}
	return 0;
}