> For the complete documentation index, see [llms.txt](https://joyous-x.gitbook.io/mbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://joyous-x.gitbook.io/mbook/part-skill/catalog-1/deng-gao-si-shu-bi-ji.md).

# 登高四书(笔记)