为实现三子棋的基本功能，我们把这个项目拆分成三个部分：test.c，game.c, game.h
源文件：test.c内部存放整体框架；game.c内部存放具体函数功能的实现
头文件：game.h内部存放函数的声明
程序源代码：
代码语言：javascript复制test.c
#define _CRT_SECURE_NO_WARNINGS 1
#include"game.h"
void menu()
{
printf("************************n");
printf("******* 1.play ******n");
printf("******* 0.exit ******n");
printf("************************n");
}
void game()
{
char ret = 0;
//存储数据--创建一个二维数组
char board[ROW][COL];
//初始化
InitiaBoard(board, ROW, COL);
//打印棋盘
Display(board, ROW, COL);
while (1)
{
//玩家走
PlayerMove(board,ROW,COL);
Display(board, ROW, COL);
//判断输赢
ret=Iswin(board, ROW, COL);
if (ret != 'C')
break;
//电脑走
ComMove(board, ROW, COL);
Display(board, ROW, COL);
//判断输赢
Iswin(board, ROW, COL);
if (ret != 'C')
break;
}
//玩家赢——返回*，电脑赢——返回#，平局——返回Q，继续——返回C
if (ret == '*')
{
printf("玩家赢了n");
}
else if (ret == '#')
{
printf("电脑赢了n");
}
else
{
printf("平局n");
}
Display(board, ROW, COL);
}
int main()
{
int input = 0;
srand((unsigned int)time(NULL));
do
{
menu();
printf("请选择:>");
scanf("%d", &input);
switch(input)
{
case 1:
printf("三子棋游戏n");
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;
}代码语言：javascript复制game.h
#include<stdio.h>
#include<time.h>
#include<stdlib.h>
//符号的定义
#define ROW 3
#define COL 3
//函数的声明
//初始化棋盘
void InitiaBoard(char board[ROW][COL], int row, int col);
//打印棋盘
void Display(char board[ROW][COL],int row,int col);
//玩家走
void PlayerMove(char board[ROW][COL], int row, int col);
//电脑走
void ComMove(char board[ROW][COL], int row, int col);
//判断输赢
char Iswin(char board[ROW][COL], int row, int col);代码语言：javascript复制game.c
#define _CRT_SECURE_NO_WARNINGS 1
#include"game.h"
void InitiaBoard(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 Display(char board[ROW][COL], int row, int col)
{
int i = 0;
for (i = 0; i < row; i )
{
//printf(" %c | %c | %c n", board[a][0], board[a][1],board[a][2]);
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)
{
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("玩家走n");
while (1)
{
printf("请输入下棋的地址：");
scanf("%d %d", &x, &y);
//判断坐标的合法性
if (x >= 1 && x <= row && y >= 1 && y <= col)
{
if (board[x - 1][y - 1] == ' ')
{
board[x - 1][y - 1] = '*';
break;
}
else
printf("坐标被占用n");
}
else
{
printf("坐标非法，请重新输入");
}
}
}
//电脑走
void ComMove(char board[ROW][COL], int row, int col)
{
printf("电脑走:>n");
while (1)
{
int x = rand() % row;
int y = rand() % col;
if (board[x][y] == ' ')
{
board[x][y] = '#';
break;
}
}
}
//判断输赢
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;
}
}
return 1;
}
char Iswin(char board[ROW][COL], int row, int col)
{
int a = 0;
for (a = 0; a < row; a )
{
if (board[a][0] == board[a][1] && board[a][1] == board[a][2]&&board[a][0]!=' ')
return board[a][0];
}
for (a = 0; a < col; a )
{
if (board[0][a] == board[1][a] && board[1][a] == board[2][a] && board[0][a] != ' ')
return board[0][a];
}
if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[0][0] != ' ')
{
return board[0][0];
}
if (board[2][0] == board[1][1] && board[1][1] == board[2][2] && board[1][1] != ' ')
{
return board[2][0];
}
//判断平局——满了返回1，不满返回零
int ret = Isfull(board, row, col);
if (ret == 1)
{
return 'Q';
}
return 'C';
}
