> For the complete documentation index, see [llms.txt](https://docshome.gitbook.io/microservices/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docshome.gitbook.io/microservices/2-using-an-api-gateway/2.1-jian-jie.md).

# 2.1、简介