c语言代码实现三子棋（详解）

设计总体思路

实现游戏可以一直玩，先打印棋盘，玩家和电脑下棋，最后分出胜负。

具体步骤

目录

一、打印游戏菜单界面

二、打印棋盘

三、玩家下棋

四、电脑下棋

五、判断输赢

一、打印游戏菜单界面

首先界面有选项选择，开始你的游戏，代码以及效果图如下：

void menu()//打印菜单
{printf("******************\n");printf("******1.play******\n");printf("******0.exit******\n");printf("******************\n");
}
int main()
{int input = 0;srand((unsigned int)time(NULL));//电脑随机产生数字do{menu();printf("请选择->\n");scanf("%d", &input);switch (input)//选择选项{case 1:game();break;case 0:printf("退出游戏\n");break;default:printf("输入错误，请重新输入\n");}} while (input);return 0;
}

二、打印棋盘

创建并初始化数组，再打印棋盘，代码以及效果图如下：

//存放下棋数据
char board[ROW][COL] = { 0 };//初始化棋盘为全空格
InitBoard(board, ROW, COL);//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] = ' ';}}
}
//打印棋盘
void DisplayBoard(char board[ROW][COL], int row, int col)//打印棋盘
{//打印数据int i = 0;for (i = 0; i < row; i++){int j = 0;for (j = 0; j < col; j++){printf(" %c ",board[i][j]);//别忘记board[i][j]if (j < col - 1){printf("|");}}printf("\n");//打印分割行if (i < row-1)//记住   row-1{for (j = 0; j < col; j++){printf("---");if (j < col - 1){printf("|");}}printf("\n");}}
}

三、玩家下棋

 '*' 代表玩家下的棋子。

代码思路，第一步创建玩家下棋的函数player_move（）并输入坐标，代码图如下：

//玩家下棋
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){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("非法坐标，请重新输入\n");}}
}

四、电脑下棋

 '#' 代表电脑下的棋子。

代码思路，第一步创建电脑下棋的函数computer_move（）并输入坐标，代码图如下：

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() % 3;y = rand() % 3;if (board[x][y] == ' '){board[x][y] = '#';break;}}
}

五、判断输赢

创建判断输赢的is_win()函数，while()循环实现玩家和电脑可以轮流下直到一方胜利，

如果有三个 '*' 符号连成一条线，代表玩家获胜，如果有三个 '#' 符号连成一条线，代表电脑获胜，或者平局。is_win（）函数中玩家赢返回'*'，电脑赢返回-'#'，平局返回'Q'，继续返回'C',

	while (1)//玩家和电脑轮流下棋，直到一方胜利{   //玩家下棋player_move(board, ROW, COL);//打印棋盘DisplayBoard(board, ROW, COL);ret = is_win(board, ROW, COL);if (ret != 'C'){break;}//电脑下棋computer_move(board, ROW, COL);//打印棋盘DisplayBoard(board, ROW, COL);ret = is_win(board, ROW, COL);if (ret != 'C'){break;}}if (ret == '*'){printf("玩家获胜\n");}else if (ret == '#'){printf("电脑获胜\n");}else // (ret == 'Q'){printf("平局\n");}DisplayBoard(board, ROW, COL);
}//判断输赢
char is_win(char board[ROW][COL], int row, int col)
{//判断每一行是否都相等int i = 0;for (i = 0; i < col; i++){if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' '){return  board[i][1];}}//判断每一列是否都相等for (i = 0; i < col; i++){if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[1][i] != ' '){return board[i][1];}}//判断对角线是否都相等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 (is_full(board, row, col) == 1){return 'Q';}//继续return 'C';
}

 最后整理代码

#define _CRT_SECURE_NO_WARNINGS 1
#include
#include
#include
#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 player_move(char board[ROW][COL], int row, int col);
//电脑下棋
void computer_move(char board[ROW][COL], int row, int col);
//判断输赢
char is_win(char board[ROW][COL], int row, int col);//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)//打印棋盘
{//打印数据int i = 0;for (i = 0; i < row; i++){int j = 0;for (j = 0; j < col; j++){printf(" %c ", board[i][j]);//别忘记board[i][j]if (j < col - 1){printf("|");}}printf("\n");//打印分割行if (i < row - 1)//记住   row-1{for (j = 0; j < col; j++){printf("---");if (j < col - 1){printf("|");}}printf("\n");}}
}
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){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("非法坐标，请重新输入\n");}}
}
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() % 3;y = rand() % 3;if (board[x][y] == ' '){board[x][y] = '#';break;}}
}
static int is_full(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;//没满}}}return 1;
}
//判断输赢
char is_win(char board[ROW][COL], int row, int col)
{//判断每一行是否都相等int i = 0;for (i = 0; i < col; i++){if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' '){return  board[i][1];}}//判断每一列是否都相等for (i = 0; i < col; i++){if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[1][i] != ' '){return board[i][1];}}//判断对角线是否都相等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 (is_full(board, row, col) == 1){return 'Q';}//继续return 'C';
}
void menu()
{printf("******************\n");printf("******1.play******\n");printf("******0.exit******\n");printf("******************\n");
}
void game()
{int ret = 0;//存放下棋数据char board[ROW][COL] = { 0 };//初始化棋盘为全空格InitBoard(board, ROW, COL);//打印棋盘DisplayBoard(board, ROW, COL);
//玩家赢返回'*'
//电脑赢返回'#'
//平局返回'Q'
//继续返回'C'while (1){   //玩家下棋player_move(board, ROW, COL);//打印棋盘DisplayBoard(board, ROW, COL);ret = is_win(board, ROW, COL);if (ret != 'C'){break;}//电脑下棋computer_move(board, ROW, COL);//打印棋盘DisplayBoard(board, ROW, COL);ret = is_win(board, ROW, COL);if (ret != 'C'){break;}}if (ret == '*'){printf("玩家获胜\n");}else if (ret == '#'){printf("电脑获胜\n");}else // (ret == 'Q'){printf("平局\n");}DisplayBoard(board, ROW, COL);
}
int main()
{int input = 0;srand((unsigned int)time(NULL));do{menu();printf("请选择->\n");scanf("%d", &input);switch (input){case 1:game();break;case 0:printf("退出游戏\n");break;default:printf("输入错误，请重新输入\n");}} while (input);return 0;
}

运行效果图：

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