> For the complete documentation index, see [llms.txt](https://www.oulan.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.oulan.com/2017/07/10.md).

# 10

欲述其白，彰其黑。欲显其黑，修其白。早安，世界。早安，未来。早安，开始的你。

<figure><img src="/files/Vzx66GIh0aWJd13YrZyy" alt=""><figcaption></figcaption></figure>