> For the complete documentation index, see [llms.txt](https://emacs-lisp.ivory.cafe/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emacs-lisp.ivory.cafe/kong-zhi-jie-gou/tiao-jian-mo-shi-pi-pei.md).

# 11.4 模式匹配（TODO）

除了上述四个基础的条件表达式，Emacs Lisp还提供了一个模式匹配条件表达式，也就是pcase宏。改宏是cond和cl-case（查阅Common Lisp Extensions）的混合，并克服了它们各自的限制，并引出了模式匹配风格的编程范式。pcase克服的限制有：


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