实验性
表示与实体生命值变化相关的信息。警告：不要在此事件中更改实体的生命值，否则会导致无限循环！
Contains information related to an entity when its health changes. Warning: don't change the health of an entity in this event, or it will cause an infinite loop!
只读
生命值发生变化的实体。
Entity whose health changed.
实体的新生命值。
New health value of the entity.
实体的旧生命值。
Old health value of the entity.
表示与实体生命值变化相关的信息。警告：不要在此事件中更改实体的生命值，否则会导致无限循环！
Contains information related to an entity when its health changes. Warning: don't change the health of an entity in this event, or it will cause an infinite loop!