C语言简易三子棋

　　这是本人依据现学知识写的简易三子棋,也不是那么简洁明了,望大佬指点

 #define _CRT_SECURE_NO_WARNINGS
 #include<stdio.h>
 #include<stdlib.h>
 #define ROW 3
 #define COL 3
 char chess_board[ROW][COL];
 int PlayGame(int choice){
     printf("************************\n");
     printf("*  欢迎来到三子棋游戏  *\n");
     printf("*       请您选择       *\n");
     printf("*      1.开始游戏      *\n");
     printf("*      2.离开游戏      *\n");
     printf("************************\n");
     while (){
         scanf("%d", &choice);
         if (choice == )
         {
             return ;
             break;
         }
         else if (choice == )
         {
             return ;
             break;
         }
         else
         {
             printf("输入非法,请重新输入!");
             continue;
         }
     }
 }
 int Init(char a[ROW][COL]){
     for (int row = ; row <ROW; row++){
         for (int col = ; col < COL; col++)
         {
             a[row][col] = '  ';
         }
     }
     return ;
 }
 void Print(char a[ROW][COL]){
     printf("           \n");
     for (int i = ; i < ROW; i++){
         printf("  %c | %c  | %c \n", a[i][], a[i][], a[i][]);
         if (i != ){
             printf("----|----|----\n");
         }
     }
 }
 void PlayerMove(char a[ROW][COL]){
     int row = -;
     int col = -;
     while (){
         printf("请您选择落子点坐标:");
         scanf("%d %d", &row, &col);
         if (row< || row> || col< || col>){
             printf("输入非法,请重新输入!");
             continue;
         }
         else if (a[row][col] == 'x' || a[row][col] == 'o')
         {
             printf("已有棋子,请重新选择坐标!");
             continue;
         }
         else
         {
             a[row][col] = 'o';
             break;
         }

     }
 }
 int IsFull(char a[ROW][COL]){
     int sum = ;
     for (int row = ; row < ROW; row++)
     {
         for (int col = ; col < COL; col++)
         {
             if (a[row][col] != ' ')
             {

                 sum++;
             }
         }
     }
     if (sum == ){
         return ;
     }
 }
 char Checkwinner(char a[ROW][COL]){
     //1.判断三子 横 竖 斜
     for (int row = ; row < ROW; row++){
         if (a[row][] == a[row][] && a[row][] == a[row][] && a[row][] != ' ')
         {
             return 'p';
         }
     }
     for (int col = ; col < COL; col++){
         if (a[][col] == a[][col] && a[][col] == a[][col] && a[][col] != ' ')
         {
             return 'p';
         }
     }
     if (a[][] == a[][] && a[][] == a[][] && a[][] != ' ')
     {
         return 'p';
     }
     if (a[][] == a[][] && a[][] == a[][] && a[][] != ' '){
         return 'p';
     }
 }

 void ComputeMove(char a[ROW][COL]){
     printf("请电脑落子!\n");
     while (){
         int col = rand() % ;
         int row = rand() % ;
         if (a[row][col] == ' ')
         {
             a[row][col] = 'x';
             break;
         }
         else continue;
     }
 }
 void Game(){
     Init(chess_board);//2.棋盘初始化
     Print(chess_board);//3.打印棋盘
     while (){

         PlayerMove(chess_board);//4.用户落子
         Print(chess_board);
         if (Checkwinner(chess_board) == 'p')
         {
             printf("玩家获胜!\n");
             break;
         }
         if (IsFull(chess_board) == )//2.判断是否和棋
         {
             printf("平局!");
             break;
         }
         ComputeMove(chess_board);//6.电脑随机落子
         Print(chess_board);//3.打印棋盘
         if (Checkwinner(chess_board) == 'p')
         {
             printf("电脑获胜!\n");
             break;
         }

         if (IsFull(chess_board) == )//2.判断是否和棋
         {
             printf("平局!\n");
             break;
         }
     }
 }

 int main(){
     int choice = ;
     if (PlayGame(choice) == ) {   //1.选择是否开始游戏  a)开始  b)离开
          Game();

     }
     system("pause");
 }