> For the complete documentation index, see [llms.txt](https://useepay.gitbook.io/developer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://useepay.gitbook.io/developer/gui-fan-xing-shuo-ming.md).

# 规范性说明

- [货币单位](https://useepay.gitbook.io/developer/gui-fan-xing-shuo-ming/huo-bi-dan-wei.md)
- [国家信息参考](https://useepay.gitbook.io/developer/gui-fan-xing-shuo-ming/guo-jia-xin-xi-can-kao.md)