headfirstDP1

说明：  深入浅出设计模式，深得GoF好评得关于设计模式得书，您说怎么样。开始试了一起传，太慢，所以分章上传。前三章
(simple design pattern has won praise in the GoF design patterns on the book, you said how kind. Start test-together, too slow, sub-chapter uploads. Ancient)