302班

#include <stdio.h>
int main(void)
{
  char c;
  printf("Enter a single character:\n");
  scanf("%c",&c);

  if((c>='a'&&c<'z')||(c>='A'&&c<='Z'))
  {
   printf("It's an alphabetic character .\n");
  }
  else if(c>'0'&&c<'9')
   printf("It's digit.\n");
  else
   printf("It's a special character.\n");
 return 0;

}