劣質代碼評析——《寫給大家看的C語言書(第2版)》》附錄B之21點程序（七）

.  findWinner( total[.  findWinner( total[.     ( total[DEALER] ==  .        printf(.        .     ( (total[DEALER] > ) && (total[PLAYER] > .       printf(, .       .     ((total[DEALER] >= total[PLAYER])&& (total[DEALER] < .       printf(.       .     ((total[PLAYER] > )&& (total[DEALER] < .       printf(.       .    printf(,.    . }

void findWinner(int total[]);

void findWinner(int total[])
{
   if ( total[DEALER] == 21 )
   {
       printf("The house wins.\n");
       return ;
   }
   
   if ( total[DEALER] > 21 )
   {
      if( total[PLAYER] > 21 )
      {
          printf("%s", "Nobody wins.\n");
          return ;
      }
   }
   if ( total[DEALER] < 21 )
   {
      if( (total[PLAYER] > 21) )
       {
            printf("The house wins.\n");
            return ;
       }
      if( (total[DEALER] >= total[PLAYER]) )
      {
          printf("The house wins.\n");
          return ;
      }
   }
   
   printf("%s%c","You win!\n",BELL);
   return;
}

/* 21點游戲：對《寫給大家看的C語言書》附錄B之21點程序的重構 */

#include <stdio.h>

typedef 
   enum
   {
     NO ,
     YES,
   } 
YESNO ;   

YESNO again( void );
void game_21( void );

int main( void )
{
  
  do{
      game_21(); //一輪游戲      
  }while ( again() == YES );
  
  return 0;
}

void game_21( void )
{
   //待完成 
}

YESNO again( void )
{
   int c;
   
   puts("繼續游戲(Y/N)?");
   c = getchar() ;
   
   while ( getchar() != '\n'){  //讀完一行 
   } 
   
   if ( c=='y' || c == 'Y' ){
      return YES;
   }
   
   return NO;
}