> 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/da-yu-yuan-chuang/cong-ming-de-tou-zi-zhe/di-yi-zhang-tou-zi-yu-tou-ji.md).

# 第一章 投资与投机

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