#include<stdio.h>
main()
{
    long nc;
    nc=0;
    while(getchar()!=EOF)
    {
    ++nc;

   
    printf("%ld\n",nc);
    }
}
#include<stdio.h>
main()
{
   double nc;
   for(nc=0;getchar()!=EOF;++nc)
       printf("%.0f\n",nc);
}

(c = getchar()) != EOF这个东西的作用是什么？另外
 #include <stdio.h>
   #define IN   1  /* inside a word */
   #define OUT  0  /* outside a word */
/* count lines, words, and characters in input */
   main()
   {
       int c, nl, nw, nc, state;
       state = OUT;
       nl = nw = nc = 0;
       while ((c = getchar()) != EOF) {
           ++nc;
           if (c == '\n')
               ++nl;
           if (c == ' ' || c == '\n' || c == '\t')
               state = OUT;
           else if (state == OUT) {
               state = IN;
               ++nw;
           }
       }
       printf("%d %d %d\n", nl, nw, nc);
   }这个程序是用来统计单词数，行数以及字符数的，但是运行时怎么出不来结果啊。。。求指导

对哈

[ 本帖最后由 abc594986308 于 2013-6-22 11:10 编辑 ]