一、各函数的功能
1.下三子棋之前应先写打印一个棋盘,将棋盘上先放入空格。
2.玩家下棋,有一个玩家下棋的函数。
3.电脑下棋,有一个电脑下棋的函数。
4.玩家和电脑下棋要判断胜负,所以要有一个判断胜负的函数。
二、代码实现
使用分文件编写,头文件game.h存放各函数的声明,源文件game.c存放各函数的定义,源文件test.c用于进行测试。各代码实现如下:
#pragma once #include <stdio.h> #include <stdlib.h> #include <time.h> #define ROW 3 #define COL 3 //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 char IsWin(char board[ROW][COL], int row, int col); //玩家赢 -返回 '*' //电脑赢 -返回 '#' //平局 -返回 'Q' //继续 -返回 'C'
#include "game.h" //初始化棋盘为空格 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++) { //1. 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"); //2. 打印分割线 if (i < row - 1) { //printf("---|---|---\n"); int j = 0; for (j = 0; j < col; j++) { printf("---"); if (j < col - 1) printf("|"); } printf("\n"); } } } void PlayerMove(char board[ROW][COL], int row, int col) { int x = 0; int y = 0; printf("玩家下棋>:\n"); while (1) { printf("请输入下棋的坐标,中间使用空格>:"); scanf("%d %d", &x, &y); //坐标合法 if (x >= 1 && x <= row && y >= 1 && y <= col) { if (board[x - 1][y - 1] == ' ')//可以落子 { board[x - 1][y - 1] = '*'; break; } else//不能落子 { printf("坐标被占有,不能落子,重新输入坐标\n"); } } else//非法 { printf("坐标非法,重新输入\n"); } } } // //电脑随机下棋 // void ComputerMove(char board[ROW][COL], int row, int col) { int x = 0;//0~row-1 int y = 0;//0~col-1 printf("电脑下棋:>\n"); while (1) { x = rand() % row; y = rand() % col; if (board[x][y] == ' ') { board[x][y] = '#'; break; } } } int IsFull(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++) { if (board[i][j] == ' ') { return 0; } } } return 1; } char IsWin(char board[ROW][COL], int row, int col) { //赢 //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]; //平局 if (IsFull(board, row, col) == 1) { return 'Q'; } //继续 return 'C'; }
#include "game.h" void menu() { printf("*****************************\n"); printf("******** 1. play *********\n"); printf("******** 0. exit *********\n"); printf("*****************************\n"); } void game() { char board[ROW][COL] = { 0 }; InitBoard(board, ROW, COL); //打印棋盘 DisplayBoard(board, ROW, COL); //下棋 char ret = 0; while (1) { //玩家下棋 PlayerMove(board, ROW, COL); DisplayBoard(board, ROW, COL); //判断输赢 ret = IsWin(board, ROW, COL); if (ret != 'C') break; //电脑下棋 ComputerMove(board, ROW, COL); DisplayBoard(board, ROW, COL); //判断输赢 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"); } int main() { int input = 0; srand((unsigned int)time(NULL));//随机生成 do { menu(); printf("请选择:>"); scanf("%d", &input);//1 0 4 switch (input) { case 1: game(); break; case 0: printf("退出游戏\n"); break; default: printf("选择错误,重新选择!\n"); break; } } while (input); return 0; }
棋盘如下: