Strtok问题C (EOF字符?)

Question

我试图写的代码应该从TXT文件中读取文本并分离成字符串。我得到了下面的代码:

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main(){
    FILE *fp;
    int i=0;
    char *words=NULL,*word=NULL,c;
    if ((fp=fopen("monologue.txt","r"))==NULL){ /*Where monologue txt is a normal file with plain text*/
        printf("Error Opening Filen");
        exit(1);}
    while ((c = fgetc(fp))!= EOF){
        if (c=='n'){ c = ' '; }
        words = (char *)realloc(words, ++i*sizeof(char));
        words[i-1]=c;}
    word=strtok(words," ");
    while(word!= NULL){
        printf("%sn",word);
        word = strtok(NULL," ");}
    exit(0);
}

问题是，我得到的输出不仅是文本(现在作为单独的字符串)，而且还有一些字符是r(这是回车)，但也241r02，我无法找出它们是什么?你能帮我吗?

Answer 1

主要的问题是您从来没有在您构建的字符串的末尾放置空终止符。

改变:

    while ((c = fgetc(fp))!= EOF){
        if (c=='n'){ c = ' '; }
        words = (char *)realloc(words, ++i*sizeof(char));
        words[i-1]=c;}
    word=strtok(words," ");

:

    while ((c = fgetc(fp))!= EOF){
        if (c=='n'){ c = ' '; }
        ++i;
        words = (char *)realloc(words, i + 1);
        words[i-1]=c;}
    words[i] = '';
    word=strtok(words," ");