Linux low-level IO and advanced IO

Open file int open (const char *path, int access,int mode)
FILE *fopen (Char *filename, char *mode)

The difference between open and fopen:
The former belongs to low-level IO, the latter is advanced IO.
The former returns a file descriptor, which returns a file pointer.
The former has no buffer, the latter has buffer.
The former is used in conjunction with read, write, etc., the latter with Fread, fwrite and so on.
The latter is expanded on the basis of the former, in most cases with the latter.
Turn off file int close (int fd)

int fclose (FILE *stream)

The difference between close and fclose:
The former belongs to low-level IO, the latter is advanced IO.
The former is used in conjunction with open (), and the latter is used in conjunction with fopen (). Write file size_t fwrite (const void *ptr, size_t size, size_t nmemb,file);

int fprintf (FILE *stream, const char *format, ...);

Fwrite () and fprintf () are advanced IO. Fwrite () is a binary way to write a file, fprintf () is the formatted data to write to the file.