如何從另一個結構訪問一個結構數組?我想從all_albums_p訪問track_titles。我tried all_albums_p[i] -> all_tracks_p[j].tracks_title
但它給我一個錯誤如何訪問另一個結構中的結構數組?
struct tracks_{
char *tracks_title;
int playlist_hits;
};
struct album_ {
int num_tracks;
struct tracks_ tracks;
};
typedef struct album_ album;
typedef struct tracks_ tracks;
album *all_albums_p = (album *)malloc(sizeof(album)*number_of_album);
fscanf(album_file,"%d", &all_albums_p[j].num_tracks);
tracks *all_tracks_p = (tracks *)malloc(sizeof(tracks)*all_albums_p[j].num_tracks);
for(i=0;i<all_albums_p[j].num_tracks;i++){
fscanf(album_file,"%d", &number_of_charaters);
all_tracks_p[i].tracks_title = (char *)malloc(sizeof(char)*(number_of_charaters+1));
fscanf(album_file, "%[^\n]s", all_tracks_p[i].tracks_title);
printf("%s\n",all_tracks_p[i].tracks_title);
all_tracks_p[i].playlist_hits = 0;
}
/*These is where it is giving me errors*/
for(i=0; i < 10 ;i++){
printf("%d : %d\n",i,all_tracks_ptr[i].num_tracks);
for(j=0; j < number_of_albums[i].num_tracks ;j++){
printf("%s", number_of_albums[i]->all_tracks[j].tracks_title)
}
}
編譯器說:
project3.c:26:39: error: request for member 'num_tracks' in something not a structure or union
project3.c:27:34: error: invalid type argument of '->' (have 'int')
'number_of_albums'是一個整數嗎? – 2012-03-31 15:59:08
好奇心,你自己寫了這段代碼嗎?它看起來像是一個由更有經驗的程序員編寫的程序的摘錄,可能會粘在由經驗較少的程序員編寫的代碼上。 – thb 2012-03-31 15:59:15
是的,我自己寫了。但我不明白我寫的一半。我只是將我筆記中的碎片粘在一起。它讓我在這裏。 – 2012-03-31 16:01:30