3.1.3 三子棋做法.c

#include "game.h"void menu()
{printf("*******************************\n");printf("********    1. play      ******\n");printf("********    0. exit      ******\n");printf("*******************************\n");
}void game()
{//存放数据需要一个3*3的二维数组char board[ROW][COL] = {0};//初始化棋盘InitBoard(board, ROW, COL);//显示棋盘DisplayBoard(board, ROW, COL);while (1){//玩家下棋//打印棋盘//判断输赢//电脑下棋//打印棋盘//判断输赢}
}int main()
{int input = 0;do{menu();printf("请选择:>");scanf("%d", &input);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;
}

3.2 玩家下棋，打印新的棋盘

在game文件中实现对棋盘上空位的判断，防止一个位置多次下棋，并且显示出空位给玩家下棋，之后打印出新的棋盘。

void player_move(char board[ROW][COL], int row, int col)
{int x = 0;int y = 0;printf("玩家下棋\n");while (1){printf("请输入坐标:>");scanf("%d %d", &x, &y);if (x >= 1 && x <= row && y >= 1 && y <= col){//下棋if (board[x - 1][y - 1] == ' '){board[x - 1][y - 1] = '*';break;}else{printf("该坐标被占用，请重新输入\n");}}else{printf("坐标非法，请重新输入\n");}}
}

3.3 电脑下棋并打印新的棋盘

玩家选择一个位置打印后，电脑通过rand()函数产生一个在限定范围内的的随机值，并产生一个随机坐标并在相应坐标打印一个字符（电脑下棋过程），滞后打印新的棋盘。

void computer_move(char board[ROW][COL], int row, int col)
{int x = 0;int y = 0;printf("电脑下棋:>\n");while (1){x = rand() % row;//模3结果为0~2y = rand() % col;//模3结果为0~2if (board[x][y] == ' '){board[x][y] = '#';break;}}
}

3.4 判断最终的结果

在多次进行 玩家—>电脑—>玩家…的循环之后，产生最终的结果，这时候对结果进行分析，相同的3个字符相连（行 列 对角线）即为胜利，如果棋盘已满也为产生胜利者即为平局。

char is_win(char board[ROW][COL], int row, int col)
{int i = 0;//判断行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[0][2] == board[1][1] && board[1][1] == board[2][0] && board[1][1] != ' '){return board[1][1];}//判断平局if (if_full(board, row, col) == 1){return 'Q';}//继续return 'C';
}

上面代码第一段判断棋盘是否满了，把结果返回给第二段代码中的函数，第二段代码中的函数判断最后的结果（玩家赢 \ 电脑赢 \平局）并把相应的字符返回到 三子棋做法.c文件中判断并打印最后结果的函数中去。

打印结果

如果结果是C将不进入if判断语句中。

	if (ret == '*'){printf("玩家赢了\n");}else if (ret == '#'){printf("电脑赢了\n");}else{printf("平局\n");}

4. 完整三子棋游戏程序的实现

4.1 game.h

//头文件的包含
#include 
#include 
#include 
#include #define ROW 3
#define COL 3//函数的声明//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);

4.2 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] = ' ';}}//memset(&board[0][0], ' ', row*col*sizeof(board[0][0]));
}void DisplayBoard(char board[ROW][COL], int row, int col)
{int i = 0;int j = 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)
{int x = 0;int y = 0;printf("玩家下棋:>\n");while (1){printf("请输入要下棋的坐标:>");scanf("%d %d", &x, &y);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，重新输入\n");}}else{printf("坐标非法，请重新输入\n");}}
}//电脑随机下棋
void ComputerMove(char board[ROW][COL], int row, int col)
{int x = 0;int y = 0;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;int j = 0;for (i = 0; i < row; i++){for (j = 0; j < col; j++){if (board[i][j] == ' '){return 0;}}}return 1;
}//判断输赢
//玩家赢 - '*'
//电脑赢 - '#'
//平局   - 'Q'
//继续   - 'C'char IsWin(char board[ROW][COL], int row, int col)
{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];}}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];}}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];}//判断是否平局if (IsFull(board, row, col)){return 'Q';}//游戏继续return 'C';
}

4.3 三子棋做法.c

#include "game.h"void menu()
{printf("*******************************\n");printf("********    1. play      ******\n");printf("********    0. exit      ******\n");printf("*******************************\n");
}void game()
{//存放数据需要一个3*3的二维数组char board[ROW][COL] = { 0 };//初始化棋盘InitBoard(board, ROW, COL);//显示棋盘DisplayBoard(board, ROW, COL);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 if ('Q' == ret){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\n");break;default:printf("选择错误，重新选择\n");break;}} while (input);return 0;
}

如果这份博客对大家有帮助，希望各位给恒川一个免费的点赞作为鼓励，并评论收藏一下，谢谢大家！！！
制作不易，如果大家有什么疑问或给恒川的意见，欢迎评论区留言。