Write a program statistic in the input string: numbers, whitespace characters, and the number of occurrences of all other characters

#include  <stdio.h>int main () {     char a=0;     int num_count=0;    int space_count=0;    int  other_count=0;                                                   //note Here, cannot be written A=getchar (), then while (a!= ' \ n '), so that only one line is entered, and then a dead Loop      while ((A=getchar ())! = ' \ n ')       {          if (a>= ' 0 ' &&a<= ' 9 ' )           {              num_count++;          }           else if (a== '   ')               {             space_ count++;          }           else          {              other_count++;           }     }    printf ("num_count=%d\n", num_ count);     printf ("space_count=%d\n", Space_count);     printf ("Other_ Count=%d\n ", other_count);   return 0;} Another method----Calling the function: #include  <stdio.h> #include  <ctype.h>    //the white-space character, Call the Isspace () function, so call the header file Int main () {   char str[20]; &nbsp   //this block has a limit on the input    int num_count=0;   int space_count=0 ;    int other_count=0;   char *p=str;   gets (str);    //Receive string    while (*p)    {     if (*p> = ' 0 ' &&*p<= ' 9 ')      {        num_ Count++;     }     else if (Isspace (*p))      //Use the Isspace function to determine if it is a blank character      {         space_count++;     }     else      {        other_count++;     }      p++;   }   printf ("num_count=%d\n", Num_count);    printf ("space_count=%D\n ", Space_count);    printf (" other_count=%d\n ", other_count);   return 0;} 

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Write a program statistic in the input string: numbers, whitespace characters, and the number of occurrences of all other characters