The concept and types of files
The concept: an ordered set of related data collection
file type:
- R regular file
- D directory file
- C character device file
- B block device file
- Inter Pipeline file p, process communication mechanism
- Inter socket file s, process communication mechanism
- L symbolic link file
How to understand the standard IO
IO standard defined by the standard ANSIC
The major operating systems (Linux, Windows) have achieved a C library
IO standard system calls by reducing the buffer mechanism to achieve greater efficiency
Meaning stream (FILE) of
Stream buffer