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【beginWork执行过程: 调用updateHostComponent】这里的逻辑是不是错误的呢? 根据上文的逻辑,这里current!==null,应该对比优先级判断当前fiber节点不需要更新 接着调用bailoutOnAlreadyFinishedWork函数,继续判断子节点是否需要更新 !includesSomeLane(renderLane, workInProgress.childLanes)返回true,子节点不需要更新,返回null 进入completeUnitOfWork函数