[C++知识库]用C语言实现五子棋游戏

在vs2019创建新项目，然后添加两个源文件test.c和game.c，接着创建一个头文件game.h。

test.c:

#include "game.h"

void game()
{
	char board[ROW][COL];
	InitBoard(board, ROW, COL);
	DisplayBoard(board, ROW, COL);
	char ret = 0;
	while (1)
	{
		PlayerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		ComputerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
	}
	if (ret == '*')
	{
		printf("玩家赢\n");
	}
	else if (ret == '#')
	{
		printf("电脑赢\n");
	}
	else
	{
		printf("平局\n");
	}
}

void menu()
{
	printf("******************************\n");
	printf("*******     1.play      ******\n");
	printf("*******     0.exit      ******\n");
	printf("******************************\n");
}
int main()
{
	int input = 0;
	srand((unsigned int)time(NULL));
	do
	{
		menu();
		printf("请输入：\n");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();
			break;
		case 0:
			printf("退出游戏\n");
			break;
		default:
			printf("输入错误，请重新输入：\n");
			break;
		}
	} while (input);
	return 0;
}

game.c:

#include "game.h"


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

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

void PlayerMove(char board[ROW][COL], int row, int col)
{
	printf("玩家走：\n");
	int i = 0;
	int j = 0;
	while (1)
	{
		printf("请输入坐标：\n");
		scanf("%d%d", &i, &j);
		if (i >= 1 && i <= row && j >= 1 && j <= col)
		{
			if (board[i - 1][j - 1] == ' ')
			{
				board[i - 1][j - 1] = '*';
				break;
			}
			else
			{
				printf("坐标被占用,请重新输入\n");
			}
		}
		else
		{
			printf("坐标超出范围\n");
		}
	}
}


void ComputerMove(char board[ROW][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	printf("电脑走：\n");
	while (1)
	{
		i = rand() % row;
		j = rand() % col;
		if (board[i][j] == ' ')
		{
			board[i][j] = '#';
			break;
		}
	}
}
int IsFull(char board[ROW][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	for (i = 0; i < row; i++)
	{
		for (j = 0; j < col; j++)
		{
			if (board[i][j] == ' ')
			{
				return 0;//棋盘没满
			}
		}
	}

	return 1;//棋盘满了

}

char IsWin(char board[ROW][COL], int row, int col)
{
	int i = 0;
	//判断三行
	for (i = 0; i < row; i++)
	{
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' ')
		{
			return  board[i][1];//
		}
	}

	//判断三列
	for (i = 0; i < col; i++)
	{
		if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[1][i] != ' ')
		{
			return board[1][i];
		}
	}

	//判断对角线
	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];
	}

	//判断平局
	//如果棋盘满了返回1， 不满返回0
	int ret = IsFull(board, row, col);
	if (ret == 1)
	{
		return 'Q';
	}

	//继续
	return 'C';
}

game.h:

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

#define ROW 3
#define COL 3

void InitBoard(char board[ROW][COL], int row, int col);
void DisplayBoard(char board[ROW][COL], int row, int col);
void PlayerMove(char board[ROW][COL], int row, int col);
void ComputerMove(char board[ROW][COL], int row, int col);
char IsWin(char board[ROW][COL], int row, int col);
int IsFull(char board[ROW][COL], int row, int col);

运行效果如图：

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