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C語言開發(fā)實(shí)現(xiàn)井字棋及電腦落子優(yōu)化示例詳解

 更新時(shí)間:2021年11月18日 17:06:19   作者:RookieStriver  
以前上課經(jīng)常和同桌玩起井字棋,那么我們就當(dāng)我們回憶童年,現(xiàn)在也用C語言來實(shí)現(xiàn)井字棋,本次代碼相對于初階的井字棋,在電腦下棋代碼部分做了優(yōu)化,使得電腦更加具有威脅

總體思路

井字棋棋盤我們總體可以當(dāng)成一個(gè)二維數(shù)組來操作,我們分別需要實(shí)現(xiàn)初始化二維數(shù)組,打印棋盤,玩家下棋,電腦下棋,判斷輸贏等代碼

項(xiàng)目的創(chuàng)建

在這里插入圖片描述

我們創(chuàng)建了頭文件用于放函數(shù)的聲明,game.c文件放置函數(shù)的實(shí)現(xiàn),test.c文件用于測試。

測試結(jié)果

電腦獲勝

在這里插入圖片描述

玩家獲勝

在這里插入圖片描述

平局

在這里插入圖片描述

各函數(shù)代碼的實(shí)現(xiàn)

我們在game.c文件中實(shí)現(xiàn)函數(shù)功能的代碼

初始化二維數(shù)組

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] = ' ';
		}
	}
}

打印棋盤

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");
	}
}

這里的棋盤我們只打印了井字的形狀,如果為了美觀,還可以進(jìn)行封邊,這里就留給朋友們自行實(shí)現(xiàn)啦。

玩家下棋

void PlayMove(char Board[ROW][COL], int row, int col)
{	
	while (1)
	{
		int x = 0, y = 0;
		printf("請輸入坐標(biāo):\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("該位置已被占,請重新輸入:\n");
		}
		else
		{
			printf("輸入錯(cuò)誤,請重新輸入:\n");
		}
	}
}

電腦下棋

在電腦落子之前,先檢測有沒有下一步可以直接贏的,若有,則落子在此處,電腦獲勝,若沒有,再檢測玩家下一步是否有機(jī)會獲勝,若玩家下一步可以直接獲勝,那么電腦將搶占這一步。

如果上述兩種情況均不存在,當(dāng)發(fā)現(xiàn)(1,1)位置是空時(shí),電腦先下這一步。

其他情況均隨意落子。

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;
				}
			}
		}
	}
}

判斷電腦是否有位置可以獲勝

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;
}

判斷玩家是否有位置獲勝

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;
}

判斷輸贏

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';
}

判斷和棋

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;
}

聲明代碼

我們在game.h頭文件中進(jìn)行函數(shù)的聲明。

void meun();
#define ROW 3
#define COL 3
//游戲主函數(shù)
void game();
//初始化二維數(shù)組
void InitBoard(char Board[ROW][COL], int row, int col);
//打印棋盤
void DisplayBoard(char Board[ROW][COL], int row, int col);
//玩家下棋
void PlayMove(char Board[ROW][COL], int row, int col);
//電腦下棋
void ComputerMove(char Board[ROW][COL], int row, int col);
//判斷贏否
char IsWin(char Board[ROW][COL], int row, int col);
//判斷棋盤滿了嗎
//int IsFull(char Board[ROW][COL], int row, int col);
//判斷電腦下一部是否可以直接贏
//int JudgeComputer(char Board[ROW][COL], int row, int col);
//判斷玩家下一步是否會贏
//int JudgePlayer(char Board[ROW][COL], int row, int col);

測試代碼

我們在test.c文件中測試該游戲。

#include "game.h"
void game()
{
	char ret = 0;
	char Board[ROW][COL] = { 0 };
	//初始化數(shù)組
	InitBoard(Board, ROW, COL);
	//打印棋盤
	printf("棋盤如下:\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盤
		DisplayBoard(Board, ROW, COL);
		//每下一步判斷一次勝負(fù)
		ret = IsWin(Board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		//電腦下棋
		printf("電腦落子:\n");
		ComputerMove(Board, ROW, COL);
		//每下一步打印一次棋盤
		DisplayBoard(Board, ROW, COL);
		ret = IsWin(Board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
	}
	if (ret == '#')
		printf("玩家獲勝\n");
	else if (ret == '*')
		printf("電腦獲勝\n");
	else if (ret == 'o')
		printf("臥龍鳳雛\n");
}
void test()
{
	int input = 0;
	srand((size_t)time(NULL));
	do
	{
		meun();
		printf("請選擇:>");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();
			break;
		case 0:
			printf("游戲結(jié)束\n");
			break;
		default:
			printf("輸入錯(cuò)誤,請重新輸入:\n");
			break;
		}
	} while (input);
}
int main()
{
	test();
	return 0;
}

總結(jié)

此次代碼的實(shí)現(xiàn)總體來說雖然能夠?qū)崿F(xiàn)井字棋功能,但是不得不承認(rèn)代碼確實(shí)不夠精簡,還有我們可以思考是否可以使電腦更加聰明,落子的每一步都有自己的‘想法',這里也是博主需要不斷思考的問題,博主也要不斷的學(xué)習(xí)看能否實(shí)現(xiàn)該功能,如果朋友們有好的想法,歡迎與我進(jìn)行交流,不勝感激,希望大家以后多多支持腳本之家!

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