其中一些文件是可写的(由根用户写)，其他文件是只读的。

Some of these files are writable (by root) and others are read-only.

youdao

我可以在该目录中添加和删除文件，因为已经设置了它的用户写位。

I can add and remove files from the directory, because its user-write bit is set.

youdao

对于可由根用户写的所有文件，可以通过echo新的设置值来修改。

All of the writable (by root) files can be changed by echoing in the new value as shown previously.

youdao

So, we spend a lot of time writing what's called user narratives of this user or this person.

所以我们花了很多时间写,各种用户的体验。

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So let's go ahead and introduce a couple other capabilities so that we can finally start writing programs that maybe print out charts or interact with the user, play games, or the like.

让我们继续来介绍其他几个功能,以便我们最终能开始写程序,那样可以打印图表或与用户交互，打游戏之类的。

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