Certain dependencies (Linux file open, read, write, close concepts; using the file descriptor and the modes that the file can be opened in; basic Python structure concepts).
一定的依赖关系(Linux文件打开、读取、写入以及关闭的概念；使用文件描述符和可以用来打开文件的模式；基本的Python结构的概念)。
The key here is that Open, Read, Write, or Close API system calls work the same regardless of whether the underlying file system is ext3 or Btrfs.
这里的关键之处是，不管底层文件系统是ext3还是Btrfs,Open、Read、Write或CloseAPI系统调用都能正常工作。
At the top of the VFS is a common API abstraction of functions such as open, close, read, and write.
在VFS上面，是对诸如open、close、read和write之类的函数的一个通用API抽象。
A set of file operations is defined for each file, which are the well-known file operations (open, close, read, write, flush, and so on).
为每个文件定义了一组文件操作，常见的文件操作包括open、close、read、write和flush等。
Each operation on a file handle-open, read, write, rewind, truncate, and close, for example-affects the state of the file.
文件句柄上的每个操作(例如open、read、write、rewind、truncate和close)影响文件的状态。
Each operation on a file handle-open, read, write, rewind, truncate, and close, for example-affects the state of the file.
文件句柄上的每个操作(例如open、read、write、rewind、truncate和close)影响文件的状态。
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