C语言数组的应用，实现三子棋游戏

棋盘样式

棋盘是三行，三列，就可以看成一个二维数组board[3][3].
三子棋首先需要创建二维数组并初始化，初始化为一个空格，然后将初始值和分割线打印出来就可以打印棋盘的样式。

游戏规则

1. 用户和电脑玩游戏，用户下棋位置由用户输入（1，1)表示第一行第一列位置，行数范围1-3，列数范围1-3，电脑下棋位置由电脑产生随机数，也要保证范围，即行数范围1-3，列数范围1-3。
2. 用户落棋点显示*,电脑落棋点显示#
3. 如果棋盘的某一行、或某一列、或者任意一个对角线三个落棋点相同，即都是*用户玩家获胜，或者都是#，那么电脑获胜
4. 如果棋盘满了且不存在获胜的条件，那么平局
5. 如果棋盘还有空格' ',且不存在获胜条件，那么继续

菜单实现

void menu()
{
    
    
	printf("*******************************\n");
	printf("*********   1.play   **********\n");
	printf("*********   0.exit   **********\n");
	printf("*******************************\n");
}

选择1，表示进行游戏，选择0表示退出。

游戏棋盘初始化

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] = ' ';
		}
	}
}

棋盘打印

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

		//打印分割行
		if (i < row - 1)
		{
    
    
			for (j = 0; j < col; j++)
			{
    
    
				printf("---");
				if (j < col - 1)
					printf("|");
			}
		}
		printf("\n");
	}

}

下棋过程

//下棋
	char ret = 0;
	while(1)
	{
    
    
		PlayerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);//判断输赢
		if (ret != 'C')
		{
    
    
			break;
		}
		ComputerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);//判断输赢
		if (ret != 'C')
		{
    
    
			break;
		}
	}
	if (ret == '*')
	{
    
    
		printf("玩家赢\n");
	}
	else if (ret == '#')
	{
    
    
		printf("电脑赢\n");
	}
	else
	{
    
    
		printf("平局\n");
	}

玩家下棋

void PlayerMove(char board[ROW][COL], int row, int col)
{
    
    
	printf("玩家走:>\n");
	while (1)
	{
    
    
		int x = 0;
		int y = 0;
		printf("请输入坐标:>");
		scanf("%d%d", &x, &y);
		if (x >= 1 && x <= 3 && y >= 1 && y <= 3)
		{
    
    
			if (board[x - 1][y - 1] == ' ')
			{
    
    
				board[x - 1][y - 1] = '*';
				break;
			}
			else
			{
    
    
				printf("坐标已有落子，请重新输入\n");
			}
		}
		else
		{
    
    
			printf("坐标非法，超出范围\n");
		}
	}

}

电脑下棋

void ComputerMove(char board[ROW][COL], int row, int col)
{
    
    
	int x = 0;
	int y = 0;
	printf("电脑走:>\n");

	while (1)
	{
    
    
		x = rand() % row;
		y = rand() % col;
		if (board[x][y] == ' ')
		{
    
    
			board[x][y] = '#';
			break;
		}
	}
}

判断获胜情况

char IsWin(char board[ROW][COL], int row, int col)
{
    
    
	//行
	int i = 0;
	for (i = 0; i < row; i++)
	{
    
    
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
		{
    
    
			return board[i][0];
		}
	}
	//列
	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];
		}
	}
	//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
	if (IsFull(board, row, col))
	{
    
    
		return 'Q';
	}
	//游戏继续
	return 'C';
}

判断其盘满

//判断满，满了返回1，没满返回0
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;//不满
			}
		}
	}
	return 1;//棋盘满
}

完整代码

//game.h

#pragma once
#include<stdio.h>
#include<stdlib.h>//srand()
#include<time.h>

#define ROW 3
#define COL 3

//声明函数
//初始化棋盘
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 PlayerMove(char board[ROW][COL], int row, int col);

//电脑下棋
void ComputerMove(char board[ROW][COL], int row, int col);

//判断输赢
//返回4种状态  
// 1,玩家赢--*
// 2.电脑赢--#
// 3.平局  --Q
// 4.继续  --C
//
char IsWin(char board[ROW][COL], int row, int col);

game.c

#define _CRT_SECURE_NO_WARNINGS

#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]);
		}
		printf("\n");
	}*/

	//int i = 0;
	//for (i = 0; i < row; i++)
	//{
    
    
	//	//打印数据
	//	printf(" %c | %c | %c \n", board[i][0], board[i][1], board[i][2]);
	//	//打印分割行
	//	if (i < row - 1)
	//	printf("---|---|---\n");
	//}

	int i = 0;
	for (i = 0; i < row; i++)
	{
    
    
		//打印数据
		int j = 0;
		for (j = 0; j < col; j++)
		{
    
    
			printf(" %c ", board[i][j]);
			if (j < col - 1)
				printf("|");
		}
		printf("\n");

		//打印分割行
		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");
	while (1)
	{
    
    
		int x = 0;
		int y = 0;
		printf("请输入坐标:>");
		scanf("%d%d", &x, &y);
		if (x >= 1 && x <= 3 && y >= 1 && y <= 3)
		{
    
    
			if (board[x - 1][y - 1] == ' ')
			{
    
    
				board[x - 1][y - 1] = '*';
				break;
			}
			else
			{
    
    
				printf("坐标已有落子，请重新输入\n");
			}
		}
		else
		{
    
    
			printf("坐标非法，超出范围\n");
		}
	}

}

void ComputerMove(char board[ROW][COL], int row, int col)
{
    
    
	int x = 0;
	int y = 0;
	printf("电脑走:>\n");

	while (1)
	{
    
    
		x = rand() % row;
		y = rand() % col;
		if (board[x][y] == ' ')
		{
    
    
			board[x][y] = '#';
			break;
		}
	}
}

//判断满，满了返回1，没满返回0
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;//不满
			}
		}
	}
	return 1;//棋盘满
}

char IsWin(char board[ROW][COL], int row, int col)
{
    
    
	//行
	int i = 0;
	for (i = 0; i < row; i++)
	{
    
    
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
		{
    
    
			return board[i][0];
		}
	}
	//列
	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];
		}
	}
	//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
	if (IsFull(board, row, col))
	{
    
    
		return 'Q';
	}
	//游戏继续
	return 'C';
}

test.c

#define _CRT_SECURE_NO_WARNINGS
#include"game.h"

void menu()
{
    
    
	printf("*******************************\n");
	printf("*********   1.play   **********\n");
	printf("*********   0.exit   **********\n");
	printf("*******************************\n");
}

void game()
{
    
    
	//三子棋的过程
	char board[ROW][COL];//棋盘数组
	//初始化棋盘
	InitBoard(board, ROW, COL);

	//打印棋盘
	DisplayBoard(board, ROW, COL);


	//下棋
	char ret = 0;
	while(1)
	{
    
    
		PlayerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);//判断输赢
		if (ret != 'C')
		{
    
    
			break;
		}
		ComputerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);//判断输赢
		if (ret != 'C')
		{
    
    
			break;
		}
	}
	if (ret == '*')
	{
    
    
		printf("玩家赢\n");
	}
	else if (ret == '#')
	{
    
    
		printf("电脑赢\n");
	}
	else
	{
    
    
		printf("平局\n");
	}
}


int main()
{
    
    
	int input = 0;
	srand((unsigned int)time(NULL));
	do
	{
    
    
		menu();
		printf("请选择:>");
		scanf("%d", &input);
		switch (input)
		{
    
    
		case 1:
			game();
			break;
		case 0:
			printf("退出游戏");
			break;
		default:
			printf("选择错误\n");
			break;
		}
	} while (input);
	return 0;
}