#include <stdio.h>
int main()
{
  char input;                  
  int word = 0, num = 0, blank = 0, other = 0; 
  printf("please enter the character and press enter to confirm:");
  for (; (input = getchar()) != '\n';) //注意括号位置
  {
    if ((input >= 'a' && input <= 'z') || (input >= 'A' && input <= 'Z'))
      word++;
    else if (input >= '0' && input <= '9')
      num++;
    else if (input == ' ')
      blank++;
    else
      other++;
  }
  printf("word=%d,num=%d,blank=%d,other=%d\n", word, num, blank, other);
  return 0;
}