在檔案裡搜尋字串

int Searchkeyword (unsigned int size, const char *keyword, FILE *fp)
{ 
    char ckw[size];
    unsigned int uikwlen=strlen(keyword)+1;
    int i=0;
    
    for(i=0;fgets(ckw,uikwlen,fp)!=NULL;i++)
    {
        if(strcmp(ckw,keyword) == 0)
        {
            //printf("fine_keyword=%s\n",ckw);
            return 1; // Found
        }
        rewind(fp);
        fseek(fp,i,SEEK_SET);
    }
    return 0; // Not Found
}

int main ()
{
    FILE *fp=fopen("C:\\file.txt","r");
    
    Searchkeyword (20,"keyword",fp); 
    fclose(fp);
    system("pause");
    return 0;
}

在檔案裡搜尋字串，不過好像用strstr()也行 =.=