This .rar file includes the ebook(pdf) of the Design Patterns: Elements of Reusable Object-Oriented Software book written by Erich Gamma / Richard Helm / Ralph Johnson / John M. Vlissides from Addison-Wesley series. The examples are implemented in C-This .rar file includes the ebook(pdf) of the Design Patterns: Elements of Reusable Object-Oriented Software book written by　Erich Gamma/Richard Helm/Ralph Johnson/John M. Vlissides from Addison-Wesley series. The examples are implemented in C++