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C语言实现井字棋及电脑落子优化 C语言开发实现井字棋及电脑落子优化示例详解

RookieStriver 人气:0
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总体思路

井字棋棋盘我们总体可以当成一个二维数组来操作，我们分别需要实现初始化二维数组，打印棋盘，玩家下棋，电脑下棋，判断输赢等代码

项目的创建

在这里插入图片描述

我们创建了头文件用于放函数的声明，game.c文件放置函数的实现，test.c文件用于测试。

测试结果

电脑获胜

在这里插入图片描述

玩家获胜

在这里插入图片描述

平局

在这里插入图片描述

各函数代码的实现

我们在game.c文件中实现函数功能的代码

初始化二维数组

void InitBoard(char Board[ROW][COL], int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			Board[i][j] = ' ';
		}
	}
}

打印棋盘

void DisplayBoard(char Board[ROW][COL], int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			printf(" %c ", Board[i][j]);
			if (j < col - 1)
				printf("|");
		}
		printf("\n");
		if (i < row - 1)
		{
			for (int j = 0; j < col; j++)
			{
				printf("---");
				if (j < col - 1)
					printf("|");
			}
		}
		printf("\n");
	}
}

这里的棋盘我们只打印了井字的形状，如果为了美观，还可以进行封边，这里就留给朋友们自行实现啦。

玩家下棋

void PlayMove(char Board[ROW][COL], int row, int col)
{	
	while (1)
	{
		int x = 0, y = 0;
		printf("请输入坐标：\n");
		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] = '#';
				break;
			}
			else
				printf("该位置已被占，请重新输入：\n");
		}
		else
		{
			printf("输入错误，请重新输入：\n");
		}
	}
}

电脑下棋

在电脑落子之前，先检测有没有下一步可以直接赢的，若有，则落子在此处，电脑获胜，若没有，再检测玩家下一步是否有机会获胜，若玩家下一步可以直接获胜，那么电脑将抢占这一步。

如果上述两种情况均不存在，当发现(1，1)位置是空时，电脑先下这一步。

其他情况均随意落子。

void ComputerMove(char Board[ROW][COL], int row, int col)
{
	int x = 0, y = 0;
	while (1)
	{
		if (JudgeComputer(Board, ROW, COL))
		{
			for (int i = 0; i < row; i++)
			{
				if (Board[i][0] == Board[i][1] && Board[i][0] == '*' && Board[i][2] == ' ')
				{
					Board[i][2] = '*';
					return;
				}
				else if (Board[i][0] == Board[i][2] && Board[i][0] == '*' && Board[i][1] == ' ')
				{
					Board[i][1] = '*';
					return;
				}
				else if (Board[i][1] == Board[i][2] && Board[i][1] == '*' && Board[i][0] == ' ')
				{
					Board[i][0] = '*';
					return;
				}
			}
			for (int j = 0; j < col; j++)
			{
				if (Board[0][j] == Board[1][j] && Board[0][j] == '*' && Board[2][j] == ' ')
				{
					Board[2][j] = '*';
					return;
				}
				else if (Board[0][j] == Board[2][j] && Board[0][j] == '*' && Board[1][j] == ' ')
				{
					Board[1][j] = '*';
					return;
				}
				else if (Board[1][j] == Board[2][j] && Board[1][j] == '*' && Board[0][j] == ' ')
				{
					Board[0][j] = '*';
					return;
				}
			}
			if (Board[0][0] == Board[1][1] && Board[0][0] == '*' && Board[2][2] == ' ')
			{
				Board[2][2] = '*';
				return;
			}
			else if (Board[0][0] == Board[2][2] && Board[0][0] == '*' && Board[1][1] == ' ')
			{
				Board[1][1] = '*';
				return;
			}
			else if (Board[1][1] == Board[2][2] && Board[1][1] == '*' && Board[0][0] == ' ')
			{
				Board[0][0] = '*';
				return;
			}
			else if (Board[0][2] == Board[1][1] && Board[0][2] == '*' && Board[2][0] == ' ')
			{
				Board[2][0] = '*';
				return;
			}
			else if (Board[0][2] == Board[2][0] && Board[0][2] == '*' && Board[1][1] == ' ')
			{
				Board[1][1] = '*';
				return;
			}
			else if (Board[2][0] == Board[1][1] && Board[2][0] == '*' && Board[0][2] == ' ')
			{
				Board[0][2] = '*';
				return;
			}
		}
		else if (JudgePlayer(Board, ROW, COL))
		{
			for (int i = 0; i < row; i++)
			{
				if (Board[i][0] == Board[i][1] && Board[i][0] == '#' && Board[i][2] == ' ')
				{
					Board[i][2] = '*';
					return;
				}
				else if (Board[i][0] == Board[i][2] && Board[i][0] == '#' && Board[i][1] == ' ')
				{
					Board[i][1] = '*';
					return;
				}
				else if (Board[i][1] == Board[i][2] && Board[i][1] == '#' && Board[i][0] == ' ')
				{
					Board[i][0] = '*';
					return;
				}
			}
			for (int j = 0; j < col; j++)
			{
				if (Board[0][j] == Board[1][j] && Board[0][j] == '#' && Board[2][j] == ' ')
				{
					Board[2][j] = '*';
					return;
				}
				else if (Board[0][j] == Board[2][j] && Board[0][j] == '#' && Board[1][j] == ' ')
				{
					Board[1][j] = '*';
					return;
				}
				else if (Board[1][j] == Board[2][j] && Board[1][j] == '#' && Board[0][j] == ' ')
				{
					Board[0][j] = '*';
					return;
				}
			}
			if (Board[0][0] == Board[1][1] && Board[0][0] == '#' && Board[2][2] == ' ')
			{
				Board[2][2] = '*';
				return;
			}
			else if (Board[0][0] == Board[2][2] && Board[0][0] == '#' && Board[1][1] == ' ')
			{
				Board[1][1] = '*';
				return;
			}
			else if (Board[1][1] == Board[2][2] && Board[1][1] == '#' && Board[0][0] == ' ')
			{
				Board[0][0] = '*';
				return;
			}
			else if (Board[0][2] == Board[1][1] && Board[0][2] == '#' && Board[2][0] == ' ')
			{
				Board[2][0] = '*';
				return;
			}
			else if (Board[0][2] == Board[2][0] && Board[0][2] == '#' && Board[1][1] == ' ')
			{
				Board[1][1] = '*';
				return;
			}
			else if (Board[2][0] == Board[1][1] && Board[2][0] == '#' && Board[0][2] == ' ')
			{
				Board[0][2] = '*';
				return;
			}
		}
		else
		{
			if (Board[1][1] == ' ')
			{
				Board[1][1] = '*';
				return;
			}
			else
			{
				x = rand() % row;
				y = rand() % col;
				if (Board[x][y] == ' ')
				{
					Board[x][y] = '*';
					break;
				}
			}
		}
	}
}

判断电脑是否有位置可以获胜

static int JudgeComputer(char Board[ROW][COL], int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		if (Board[i][0] == Board[i][1] && Board[i][0] == '*' && Board[i][2] == ' ')
			return 1;
		else if (Board[i][0] == Board[i][2] && Board[i][0] == '*' && Board[i][1] == ' ')
			return 1;
		else if (Board[i][1] == Board[i][2] && Board[i][1] == '*' && Board[i][0] == ' ')
			return 1;
	}
	for (int j = 0; j < col; j++)
	{
		if (Board[0][j] == Board[1][j] && Board[0][j] == '*' && Board[2][j] == ' ')
			return 1;
		else if (Board[0][j] == Board[2][j] && Board[0][j] == '*' && Board[1][j] == ' ')
			return 1;
		else if (Board[1][j] == Board[2][j] && Board[1][j] == '*' && Board[0][j] == ' ')
			return 1;
	}
	if (Board[0][0] == Board[1][1] && Board[0][0] == '*' && Board[2][2] == ' ')
		return 1;
	else if (Board[0][0] == Board[2][2] && Board[0][0] == '*' && Board[1][1] == ' ')
		return 1;
	else if (Board[1][1] == Board[2][2] && Board[1][1] == '*' && Board[0][0] == ' ')
		return 1;
	else if (Board[0][2] == Board[1][1] && Board[0][2] == '*' && Board[2][0] == ' ')
		return 1;
	else if (Board[0][2] == Board[2][0] && Board[0][2] == '*' && Board[1][1] == ' ')
		return 1;
	else if (Board[2][0] == Board[1][1] && Board[2][0] == '*' && Board[0][2] == ' ')
		return 1;
	else
		return 0;
}

判断玩家是否有位置获胜

static int JudgePlayer(char Board[ROW][COL], int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		if (Board[i][0] == Board[i][1] && Board[i][0] == '#' && Board[i][2] == ' ')
			return 1;
		else if (Board[i][0] == Board[i][2] && Board[i][0] == '#' && Board[i][1] == ' ')
			return 1;
		else if (Board[i][1] == Board[i][2] && Board[i][1] == '#' && Board[i][0] == ' ')
			return 1;
	}
	for (int j = 0; j < col; j++)
	{
		if (Board[0][j] == Board[1][j] && Board[0][j] == '#' && Board[2][j] == ' ')
			return 1;
		else if (Board[0][j] == Board[2][j] && Board[0][j] == '#' && Board[1][j] == ' ')
			return 1;
		else if (Board[1][j] == Board[2][j] && Board[1][j] == '#' && Board[0][j] == ' ')
			return 1;
	}
	if (Board[0][0] == Board[1][1] && Board[0][0] == '#' && Board[2][2] == ' ')
		return 1;
	else if (Board[0][0] == Board[2][2] && Board[0][0] == '#' && Board[1][1] == ' ')
		return 1;
	else if (Board[1][1] == Board[2][2] && Board[1][1] == '#' && Board[0][0] == ' ')
		return 1;
	else if (Board[0][2] == Board[1][1] && Board[0][2] == '#' && Board[2][0] == ' ')
		return 1;
	else if (Board[0][2] == Board[2][0] && Board[0][2] == '#' && Board[1][1] == ' ')
		return 1;
	else if (Board[2][0] == Board[1][1] && Board[2][0] == '#' && Board[0][2] == ' ')
		return 1;
	else
		return 0;
}

判断输赢

char IsWin(char Board[ROW][COL], int row, int col)
for (int i = 0; i < row; i++)
	{
		if (Board[i][0] == Board[i][1] && Board[i][2] == Board[i][1] && Board[i][1] != ' ')
		{
			return Board[i][0];
		}
	}
	for (int j = 0; j < col; j++)
	{
		if (Board[0][j] == Board[1][j] && Board[1][j] == Board[2][j] && Board[j][1] !=  ' ')
		{
			return Board[0][j];
		}
	}
	if (Board[0][0] == Board[1][1] && Board[2][2] == Board[1][1] && Board[2][2] != ' ')
		return Board[0][0];
	if (Board[0][2] == Board[1][1] && Board[2][0] == Board[1][1] && Board[1][1] != ' ')
		return Board[1][1];
	if (IsFull(Board, ROW, COL))
	{
		return 'o';
	}
	return 'C';
}

判断和棋

static int IsFull(char Board[ROW][COL], int row, int col)
{
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			if (Board[i][j] == ' ')
				return 0;
		}
	}
	return 1;
}

声明代码

我们在game.h头文件中进行函数的声明。

void meun();
#define ROW 3
#define COL 3
//游戏主函数
void game();
//初始化二维数组
void InitBoard(char Board[ROW][COL], int row, int col);
//打印棋盘
void DisplayBoard(char Board[ROW][COL], int row, int col);
//玩家下棋
void PlayMove(char Board[ROW][COL], int row, int col);
//电脑下棋
void ComputerMove(char Board[ROW][COL], int row, int col);
//判断赢否
char IsWin(char Board[ROW][COL], int row, int col);
//判断棋盘满了吗
//int IsFull(char Board[ROW][COL], int row, int col);
//判断电脑下一部是否可以直接赢
//int JudgeComputer(char Board[ROW][COL], int row, int col);
//判断玩家下一步是否会赢
//int JudgePlayer(char Board[ROW][COL], int row, int col);

测试代码

我们在test.c文件中测试该游戏。

#include "game.h"
void game()
{
	char ret = 0;
	char Board[ROW][COL] = { 0 };
	//初始化数组
	InitBoard(Board, ROW, COL);
	//打印棋盘
	printf("棋盘如下：\n");
	DisplayBoard(Board, ROW, COL);
	while (1)
	{
		//玩家下棋
		printf("玩家落子：\n");
		PlayMove(Board, ROW, COL);
		//每下一步打印一次棋盘
		DisplayBoard(Board, ROW, COL);
		//每下一步判断一次胜负
		ret = IsWin(Board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		//电脑下棋
		printf("电脑落子：\n");
		ComputerMove(Board, ROW, COL);
		//每下一步打印一次棋盘
		DisplayBoard(Board, ROW, COL);
		ret = IsWin(Board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
	}
	if (ret == '#')
		printf("玩家获胜\n");
	else if (ret == '*')
		printf("电脑获胜\n");
	else if (ret == 'o')
		printf("卧龙凤雏\n");
}
void test()
{
	int input = 0;
	srand((size_t)time(NULL));
	do
	{
		meun();
		printf("请选择:>");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();
			break;
		case 0:
			printf("游戏结束\n");
			break;
		default:
			printf("输入错误，请重新输入：\n");
			break;
		}
	} while (input);
}
int main()
{
	test();
	return 0;
}

总结

此次代码的实现总体来说虽然能够实现井字棋功能，但是不得不承认代码确实不够精简，还有我们可以思考是否可以使电脑更加聪明，落子的每一步都有自己的‘想法'，这里也是博主需要不断思考的问题，博主也要不断的学习看能否实现该功能，如果朋友们有好的想法，欢迎与我进行交流，不胜感激,希望大家以后多多支持！

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