> For the complete documentation index, see [llms.txt](https://fishead.gitbook.io/openapi-specification-zhcn-translation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fishead.gitbook.io/openapi-specification-zhcn-translation/gui-fan/gui-fan-kuo-zhan.md).

# 规范扩展