Qt Demo 4.7 源码样例，非常全的Qt 源码，囊括大部分的Qt API。-Qt Demo 4.7 source sample, very wide of the Qt source, include most of the Qt API.

qt编程事件机制demo，初学者参考，-qt event demo

使用qt编写的串口网络调试助手，简单demo功能，并且带有两种stylesheet的效果(Prepared using QT serial network debugging assistant, simple demo function, and with two kinds of stylesheet effect)