Weak and soft references both extend the abstract reference class (as do phantom references, which will be discussed in a future article).

弱引用和软引用都扩展了抽象的reference类(虚引用(phantomreferences)也一样，这将在以后的文章中介绍)。

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However, when it occurs within the declaration portion of a managed reference class type, it is treated as a keyword within the context of that class declaration.

但是，当它出现在托管引用类类型的声明部分中时，将其视为该类声明的上下文中的关键字。

youdao

However, when it occurs within the declaration portion of a managed reference class type, it is treated as a keyword within the context of that class declaration.

但是，当它出现在托管引用类类型的声明部分中时，将其视为该类声明的上下文中的关键字。

youdao