使用16進位副程式改寫switch - SOGO論壇

#include<stdio.h>
#include<stdlib.h>

int main(void)
{
int a, b;
printf("請輸入一筆十進制之正整數(0~255之間)：");
scanf("%d", &a);
if( a > 255 || a < 0)
{
      printf("輸入範圍錯誤！！\n");
}
else
{
      printf("十進制值%d轉成十六進制值為：", a);
      b = a / 16;
      switch(b)
      {
         case 10:
               printf("A");
               break;
         case 11:
               printf("B");
               break;
         case 12:
               printf("C");
               break;
         case 13:
               printf("D");
               break;
         case 14:
               printf("E");
               break;
         case 15:
               printf("F");
               break;
         default:
               printf("%d", b);
      }
      b = a % 16;
      switch(b)
      {
         case 10:
               printf("A");
               break;
         case 11:
               printf("B");
               break;
         case 12:
               printf("C");
               break;
         case 13:
               printf("D");
               break;
         case 14:
               printf("E");
               break;
         case 15:
               printf("F");
               break;
         default:
               printf("%d", b);
      }
      printf("\n");
}

system("pause");
return 0;
}