为Actor添加可持久化的component
playerzhou
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https://forums.unrealengine.com/t/add-component-to-actor-in-c-the-final-word/646838
在创建完component并挂载在actor身上外，还需要调用AddInstanceComponent，否则编辑器下不可见，且无法被序列化
https://forums.unrealengine.com/t/add-component-to-actor-in-c-the-final-word/646838
在创建完component并挂载在actor身上外，还需要调用AddInstanceComponent，否则编辑器下不可见，且无法被序列化
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