> 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/2018/10/09.md).

# 09

早安，世界。早安，未来。早安，给留恋的地方。

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