> 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/2020/02/25.md).

# 25

守护能守护的，开放能开放的。

早安，世界。早安，未来。

![](/files/-Mhh3eUrY222Jo9rG5xq)