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scala 内部类使用小细节
2022-08-09 14:55:00 【yisun123456】
对于Java 外部类调用内部类不用担心类别问题。比如outer1.foo(inner2)
但是对于Scala 需要进行类型投影 也就是outer1.foo(inner2)是执行不了的，需要对foo(in:Outer#Inner)
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