Provides classes that leverage Java's annotation mechanism to annotate desired variables and types, so as to eliminate circular reference and improve performance.

创新互联专注于企业营销型网站建设、网站重做改版、梁子湖网站定制设计、自适应品牌网站建设、H5开发、商城系统网站开发、集团公司官网建设、成都外贸网站建设、高端网站制作、响应式网页设计等建站业务，价格优惠性价比高，为梁子湖等各大城市提供网站开发制作服务。

The related classes are as follows: Permanent, Unowned, UnownedLocal, UnownedOuter, and Weak.

Since:

1

annotation types summary

Annotation Type	Description
Permanent	Annotates persistent memory objects.
Unowned	Annotates an object without ownership to eliminate circular reference.
UnownedLocal	Annotates a method or a single local variable.
UnownedOuter	Annotates a class to eliminate circular reference.
Weak	Annotates weak reference objects.

当前标题：创新互联鸿蒙OS教程：鸿蒙OSoverview
文章出自：http://cdbrznjsb.com/article/dpjjgep.html