重学C语言(纯代码)

三子棋，由于game.c中board数组把行列固定了，只能设计三子棋，想要更改格数的话需要更换IsWin函数改成for循环

main.c

#define _CRT_SECURE_NO_WARNINGS 1

#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>

#include "game.h"


void menu()
{
  printf("******************************\n");
  printf("****1.Play           2.Exit***\n");
  printf("******************************\n");
}

void game()
{
  char ret = 0;
   //数组--存放走出的棋盘信息
  char board[ROW][COL] = { 0 }; 
  //初始化棋盘
  InitBoard(board,ROW,COL);
  //打印棋盘
  DisplayBoard(board,ROW,COL);
  //下棋
  while (1)
  {
    //玩家下棋
    PlayerMove(board,ROW,COL);
    DisplayBoard(board,ROW,COL);
    //判断玩家是否赢
    ret = IsWin(board,ROW,COL);
    if(ret != 'C')
    {
      break;
    }
    //电脑下棋
    ComputerMove(board,ROW,COL);
    DisplayBoard(board,ROW,COL);
    //判断电脑是否赢
    ret = IsWin(board, ROW, COL);
    if (ret != 'C')
    {
      break;
    }
  }
  if (ret == '*')
  {
    printf("玩家赢！");
  }
  if (ret == '#')
  {
    printf("电脑赢！");
  }
  else
    printf("平局！");
}


void test()
{
  int input = 0;
  srand((unsigned int)time(NULL));
  do
  {
    menu();
    printf("请选择：>");
    scanf("%d",&input);
    switch (input) 
    {
    case 1:
      printf("三子棋\n"); 
      game();
      break;
    case 2:
      printf("退出游戏\n");
      break;
    default:
      printf("选择错误，请重新选择！\n");
      break;
    }
  } while (input);
}


int main()
{
  test();
  return 0;
}

game.h

#define _CRT_SECURE_NO_WARNINGS 1


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


#define ROW   3
#define COL   3


//函数的声明
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);

//四种游戏状态：玩家赢-->'*'、电脑赢-->'#'、平局--'Q'、继续-->'C'
char IsWin(char board[ROW][COL], int row, int col);

game.c

#define _CRT_SECURE_NO_WARNINGS 1


#include "game.h"


void InitBoard(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++)
    {
      board[i][j] = ' ';
    }  
  }
}

void DisplayBoard(char board[ROW][COL], int row, int col)
{
  //   |   |
  //---|---|---
  //   |   |   
  //---|---|---
  //   |   |   
  int i = 0;
  for (i = 0; i < row; i++)
  {
    //1.打印一行的数据
    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)
{
  int x = 0;
  int y = 0;
  printf("玩家走：>\n");
  
  while (1)
  {
    printf("请输入要下的坐标：>");
    scanf("%d%d", &x, &y);
    //判断x,y坐标是否合法
    if (x >= 1 && x <= row && y >= 1 && y <= col)
    {
      if (board[x - 1][y - 1] == ' ')
      {
        board[x - 1][y - 1] = '*';
        break;
      }
      else
        printf("该坐标被占用！\n");
    }
    else
      printf("坐标非法，请重新输入！\n");
  }
}

void ComputerMove(char board[ROW][COL], int row, int col)
{
  printf("电脑走：>\n");
  int x = 0;
  int y = 0;
  
  while (1)
  {
    x = rand() % row;//生成随机下标，在ROW范围内
    y = rand() % col;
    if (board[x][y] == ' ')
    {
      board[x][y] = '#';
      break;
    }
  }
}

//返回1表示棋盘满了，返回0表示棋盘没满
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;//没满
      }
    }
  }
  return 1;//满了
}

char IsWin(char board[ROW][COL], int row, int col)
{
  int i = 0;
  //横三行
  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];
    }
  }
  //竖三列
  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];
    }
  }
  //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[2][0] == board[1][1] == board[0][2] && board[1][1] != ' ')
  {
    return board[1][1];
  }
  //判断是否平局
  if (1 == IsFull(board, ROW, COL))
  {
    return 'Q';
  }
  return 'C';
}