《设计模式：可复用面向对象软件设计基础》一书超清晰非扫描版，很难得下载到。书中讲解都是用C++，对其他语言也有可借鉴之处。-"Design Patterns: Reusable Object-Oriented Software Design based on" a book of non-scan version of ultra-clear, it is difficult to get downloaded to. The book is used on C　　, for other languages also can learn from.