> For the complete documentation index, see [llms.txt](https://shenjunhong.gitbook.io/blog/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://shenjunhong.gitbook.io/blog/yuan-ma/react/react-yuan-ma-fen-xi-zhi-ru-kou-he-you-hua.md).

# 核心知识点

1.判断组件更新是否可以优化 2.根据节点类型分发处理 3.根据expirationTime等信息判断是否可以跳过