> 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/2017/01/02.md).

# 02

什么也不做虽然不会错，但是即使有翅膀也不会飞行。

![](https://385430918-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M8iFCzaIpXf8zXqpE6I%2F-MHQMxnMn3-Vz2m-_Dep%2F-MHQNrG-bd3E1WRHkPc4%2Fimage.png?alt=media\&token=fe124f0c-2330-4b77-93b6-04bcd904cd40)