FD 4 is where things get a bit more interesting, since it is a write-only handle to a character device, essentially /dev/log.

FD 4 中的内容比较有趣，因为它是一个字符设备的只读句柄，实质上是 /dev/log。

youdao

Retrieve character o (log n) o (1).

检索字符o (log n) o (1)。

youdao

As I mentioned in the overview section, random character access on a rope with many internal nodes is approximately o (log n), so traversal is o (n log n).

就像我在概述一节中提到过的，在拥有许多内部节点的rope上随机访问字符的时间大约为o (log n)，所以遍历时间为o (nlog n)。

youdao

Whereas every other MMO requires you to log out as one character in order to log back in, this one lets you shift almost effortlessly.

FORBES: A First Look at the Upcoming MMO 'Marvel Heroes'

It attracts up to 10, 000 visitors a day who can log on and choose a 3-D character which can kneel, sing hymns, hear a sermon and even shout "Hallelujah"!

BBC: NEWS | UK | Online church blocks Satan visits