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2 changes: 1 addition & 1 deletion docs/process/beginWork.md
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ function beginWork(
- workInProgress:当前组件对应的`Fiber节点`
- renderLanes:优先级相关,在讲解`Scheduler`时再讲解

从[双缓存机制一节](./doubleBuffer.html)我们知道,除[`rootFiber`](./doubleBuffer.md#mount%E6%97%B6)以外, 组件`mount`时,由于是首次渲染,是不存在当前组件对应的`Fiber节点`在上一次更新时的`Fiber节点`,即`mount`时`current === null`。
从[双缓存机制一节](./doubleBuffer.html)我们知道,除[`fiberRootNode`](./doubleBuffer.md#mount%E6%97%B6)以外, 组件`mount`时,由于是首次渲染,是不存在当前组件对应的`Fiber节点`在上一次更新时的`Fiber节点`,即`mount`时`current === null`。

组件`update`时,由于之前已经`mount`过,所以`current !== null`。

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