说明：  C++ Qt设计模式（第二版），非常好的Qt学习书籍，书地部分为设计模式与Qt，第二部分为C++语言规范，第三部分分为编程作业。知识点分解详细易懂，实例众多，是Qt设计学习不可多得的教材之一。
(C + + QT design pattern (Second Edition), very good QT learning books, the book part for design patterns and QT, the second part for the C + + language specification, the third part is divided into programming assignments. Knowledge points decomposition is detailed and easy to understand, with many examples, which is one of the rare teaching materials for QT design learning.)