fs.close(fd[, callback])
关闭文件描述符。 除了可能的异常之外,没有为完成回调提供任何参数。
fd
<integer>callback
<Function>err
<Error>
Closes the file descriptor. No arguments other than a possible exception are given to the completion callback.
Calling fs.close()
on any file descriptor (fd
) that is currently in use
through any other fs
operation may lead to undefined behavior.
See the POSIX close(2)
documentation for more detail.