C语言实现简单的三子棋

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
//定义宏，棋盘的最大行数和最大列数为3
#define MAX_ROW 3
#define MAX_COL 3
 
//无论是玩家落子还是电脑落子，都需确定落子的行和列，以此确定在棋盘上的位置
 
//玩家落子
//玩家输入之后，需要检验是否输入越界，该位置是否已经落子
//若无这两种情况，就将该位置赋值为'x',否则重新输入
char playermove(char chessboard[MAX_ROW][MAX_COL])
{
 int row = 0;
 int col = 0;
 while (1){
 printf("请输入您落子的位置：（row col）");
 scanf("%d %d", &row, &col);
 //校验
 //校验输入是否输入有误
 if (row < 0 || row >= MAX_ROW || col<0 || col>=MAX_COL){
 printf("您的输入越界!!\n");
 continue;
 }else if (chessboard[row][col]!=' '){
 printf("该位置已落子!!\n");
 continue;
 }else{
 chessboard[row][col] = 'x';
 return chessboard[row][col];
 }
 
 }
}
 
//电脑落子
//需要检验该位置是否落子（无需检验是否越界，因为我们设置的落子范围为有效范围）
//若无以上情况，就将该位置赋值为'o',否则，重新获取随机值
void computermove(char chessboard[MAX_ROW][MAX_COL])
{
 while (1){
 int row = rand() % MAX_ROW;   //获取一个0~2范围内的随机行数
 int col = rand() % MAX_COL;   //获取一个0~2范围内的随机列数
 //校验落子位置是否已经落子
 if (chessboard[row][col] != ' '){
 continue;
 }
 chessboard[row][col] = 'o';
 break;
 }
 
}
 
//判断是否为和棋，即判断棋盘是否满
//找到空格代表未满，找不到，则满了（因为我们初始化的时候将棋盘初始化为空格' '）
//满返回1，未满返回0
char isFull(char chessboard[MAX_ROW][MAX_COL])
{
 for (int row = 0; row < MAX_ROW; row++){
 for (int col = 0; col < MAX_COL; col++){
 //找到空格
 if (chessboard[row][col] == ' '){
 return 0;
 }
 }
 }
 //未找到，即满了
 return 1;
}
 
//判断是否赢
//'x'表示玩家获胜
//'o'表示电脑获胜
//' '表示胜负未分
//'h'表示和棋
char isWin(char chessboard[MAX_ROW][MAX_COL])
{
//同一行相同
//注意:相同应排除空格相同的情况，以下同
 for (int row = 0; row < MAX_ROW; row++){
 if (chessboard[row][0]!=' '
 &&(chessboard[row][0] ==chessboard[row][1])
 &&(chessboard[row][0]== chessboard[row][2])){
 return chessboard[row][0];
 }
 }
//同一列相同
 for (int col = 0; col < MAX_COL; col++){
 if (chessboard[0][col]!=' '
 &&(chessboard[0][col] == chessboard[1][col])
 &&(chessboard[0][col] == chessboard[2][col])){
 return chessboard[0][col];
 }
 }
//对角线相同
 if (chessboard[0][0] != ' '
 && (chessboard[0][0] == chessboard[1][1])
 && (chessboard[0][0] == chessboard[2][2])){
 return chessboard[0][0];
 }
 if (chessboard[0][2] != ' ' 
 &&(chessboard[0][2] == chessboard[1][1])
 &&(chessboard[0][2] == chessboard[2][0])){
 return chessboard[0][2];
 }
//和棋
 if (isFull(chessboard)){
 return 'h';
 }
 return ' ';
}
 
//初始化棋盘,初始化为空格' '
void init(char chessboard[MAX_ROW][MAX_COL])
{
 for (int row = 0; row < MAX_ROW; row++){
 for (int col = 0; col < MAX_COL; col++){
 chessboard[row][col] = ' ';
 }
 }
}
//打印棋盘
void printchessboard(char chessboard[MAX_ROW][MAX_COL])
{
 printf("+---+---+---+\n");
 for (int row = 0; row < MAX_ROW; row++){
 printf("| %c | %c | %c |\n", chessboard[row][0], chessboard[row][1], chessboard[row][2]);
 printf("+---+---+---+\n");
 }
 
}
 
//游戏
void game()
{
 char chessboard[MAX_ROW][MAX_COL] = {0};
 init(chessboard);//初始化棋盘
 char winner = ' ';
 while (1){
 printchessboard(chessboard);//打印棋盘
 playermove(chessboard);//玩家落子
 //校验，是否赢是否和棋
 winner = isWin(chessboard);
 if (winner != ' '){
 break;
 }
 computermove(chessboard);//电脑落子
 winner = isWin(chessboard);
 if (winner != ' '){
 break;
 }
 }
 if (winner == 'x'){
 printchessboard(chessboard);
 printf("恭喜您赢了！\n");
 }else if (winner == 'o'){
 printchessboard(chessboard);
 printf("很遗憾您输了！\n");
 }else if (winner == 'h'){
 printchessboard(chessboard);
 printf("和棋！您和电脑棋技相当~\n");
 }
}
 
//菜单
int menue(int choice)
{
 printf("************************\n");
 printf("1.开始游戏\n");
 printf("0.结束游戏\n");
 printf("************************\n");
 printf("请输入您的选择：");
 scanf("%d", &choice);
 return choice;
}
 
//主函数
int main()
{
 srand(time(0));
 int choice = 0;
 while (1){
 choice=menue(choice);
 if (choice == 1){
 game();
 }else if (choice == 0){
 break;
 }else{
 printf("您的输入有误，请重新输入\n");
 continue;
 }
 }
 system("pause");
 return 0;
}