> 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/2020/03/03.md).

# 03

在时间的序列里，在结构的序列里，在程度的序列里。

![](/files/o57r2oyNIrq7GPvuwnns)