> 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/2020/05/16.md).

# 16

昨如昨，今何在？ 愿相望，时我待。

![](https://385430918-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M8iFCzaIpXf8zXqpE6I%2Fuploads%2FcxPUUpGjRDfayUFnQN1m%2Fimage.png?alt=media\&token=59693b1f-b176-4311-9f69-6ce3f1eab128)