> 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/2020/01/27.md).

# 27

道阻且长，便早些起行。

早安，世界。早安，未来。

![](/files/-MTV1AknkxQypJtV5L9X)