#include<stdio.h>
#include<ctype.h>
#include<stdbool.h>
#define STOP '|'
int main(void)
{
    char c;
    char prev;
    long n_chars = 0L;
    int n_lines = 0;
    int n_words = 0;
    int p_lines = 0;
    bool inword = false;
    printf("Enter text to be ananlyzed(| to terminate;\n");
    prev = '\n';
    while ((c = getchar() != STOP))
    {
        n_chars++;
            if (c == '\n')
                n_lines++;
        if ( !isspace(c) &&  !inword)
        {
            inword = true;
                n_words++;
        }
        if (isspace(c) && inword)
            inword = false;
        prev = c;
    }
    if (prev != '\n')
        p_lines = 1;
    printf("characters = %ld,words = %d,lines = %d,",
        n_chars, n_words, n_lines);
    printf("partial lines = %d\n", p_lines);
    return 0;
}

我是按着书上打的，检查过一遍了，应该没打错，难道是编译器问题吗？我用的是VS2013