> For the complete documentation index, see [llms.txt](https://btcdayu.gitbook.io/dayu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://btcdayu.gitbook.io/dayu/jiao-yi-mi-jue/shi-pin-cong-ling-kai-shi-xue-jiao-yi/3.-jing-dian-jie-gou.md).

# 3.经典结构

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