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+ **每日一更**
+ 
++- [effctive-java-2rd 中文版](https://pan.baidu.com/s/1R6H9UHbFYubWWY9HrclZ2A)
++- [effctive-java-3rd 英文版](https://pan.baidu.com/s/1mJx5ZrOD_RPjf3ghQnBV5g)