> 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/2020/05/17.md).

# 17

洞中方一日，崖顶已多年 世间多奇事，门里学修仙

![](https://385430918-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M8iFCzaIpXf8zXqpE6I%2Fuploads%2Fte4MILT0A0JrGUPWdHvx%2Fimage.png?alt=media\&token=f658fd8a-318f-4639-bc8d-c34a298f8945)