QT学习笔记是笔者用心之作，集合了笔记多年学习QT的心得与体会，对于广大初学者及有一定基础的读者来说均有不错的学习作用！-QT heart of the study notes for the author, a collection of notes for many years and experience of learning experiences in QT, for the majority of beginners and have some readers who have a good basis for learning the role!