同样是计数器，计算输入的字符、单词、行数。求大神指点不同之处，拜谢拜谢！
这是书上的：
/* Note:Your choice is C IDE */
#include "stdio.h"
#define IN 1
#define OUT 0
int main()
{
       int c,nl,nw,nc,state;
     /*nc为字符数，nl为行数，nw为单词数*/
      
       state = OUT;
       nl = nw = nc = 0;
      
       while((c = getchar())!=EOF)
       {
               ++nc;
               if( c == '\n')
                   ++nl;
                  
               if( c == ' ' || c == '\t' || c == '\n')
                   state = OUT;
                  
               else if( state == OUT )
               {
                   state = IN;
                   ++nw;
               }
       }
        printf('%d %d %d\n",nl,nw,nc);
}

这是我自己写的：
/* Note:Your choice is C IDE */
#include "stdio.h"

int main()
{
    int cc=1,cr=1,cw=1,a;
   /*cc为字符数，cr为行数，cw为单词数*/   
   
    while((a = getchar())!=EOF)
    {
        cc++;
        if(a == '\n'  )
            cr++;
        if(a ==  '\n'  || a ==  '\t'  || a == '\ ')
            cw++;  
    }
    printf("cc=%d,cr=%d,cw=%d",cc,cr,cw);
}