Qt是一个1991年由奇趣科技开发的跨平台C++图形用户界面应用程序开发框架。它既可以开发GUI程式，也可用于开发非GUI程式，比如控制台工具和服务器。Qt是面向对象的框架，使用特殊的代码生成扩展（称为元对象编译器(Meta Object Compiler, moc)）以及一些宏，易于扩展，允许组件编程。-Qt is a Trolltech developed in 1991 by C++ cross-platform graphical user interface application development fr a mework. It can develop GUI program can also be used for developing non-GUI programs such as console tools and servers. Qt is an object-oriented fr a mework, using a special code generation extensions (called meta-object compiler (Meta Object Compiler, moc)) as well as some macros, easy to expand, allowing the component programming.