使用注释时要记住的一个因素是，命名值必须始终是编译时常量，而且不能为null。

One factor to keep in mind when working with annotations is that the named values must always be compile-time constants and can never be null.

youdao

使用注释时要记住的一个因素是，命名值必须始终是编译时常量，而且不能为null。

One factor to keep in mind when working with annotations is that the named values must always be compile-time constants and can never be null.

youdao