If the behavior is removed from the object and put into a service, the object then becomes a mere holder for data.

如果把行为从对象转移到服务中，对象就成了纯粹的数据容器。

youdao

If the behavior is removed from the object and put into a service, the object then becomes a mere holder for data.

如果把行为从对象转移到服务中，对象就成了纯粹的数据容器。

youdao