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2 changes: 1 addition & 1 deletion docs/main/fibertree-prepare.md
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Expand Up @@ -23,7 +23,7 @@ title: fiber 树构造(基础准备)
由于`fiber 树构造`源码量比较大, 本系列根据`React`运行的`内存状态`, 分为 2 种情况来说明:

1. 初次创建: 在`React`应用首次启动时, 界面还没有渲染, 此时并不会进入对比过程, 相当于直接构造一棵全新的树.
2. 对比更新: `React`应用启动后, 界面已经渲染. 如果再次发生更新, 创建`新fiber`之前需要和`旧fiber`进行对比. 最后构造的 fiber 树有可能是全新的, 也可能是部分更新的.
2. 对比更新: `React`应用启动后, 界面已经渲染. 如果再次发生更新, 创建`新fiber`节点之后需要和`旧fiber`节点进行对比. 最后构造的 fiber 树有可能是全新的, 也可能是部分更新的.

无论是`初次创建`还是`对比更新`, 基础概念都是通用的, 本节将介绍这些基础知识, 为正式进入`fiber树构造`做准备.

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