注意通配符实际并不会怎么弱化静态类型系统，因为它通常和映射APIs（总是要求投射明确）一块出现。

Note the wildcard feature does not really weaken the static type system much, because it typically only kicks in with reflection APIs (which would have have required an explicit cast anyways)...

youdao

注意通配符实际并不会怎么弱化静态类型系统，因为它通常和映射APIs（总是要求投射明确）一块出现。

Note the wildcard feature does not really weaken the static type system much, because it typically only kicks in with reflection APIs (which would have have required an explicit cast anyways)...

youdao