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是面向对象语言，易于扩展，并且允许组件编程。2008年，奇趣科技被诺基亚公司收购，QT也因此成为诺基亚旗下的编程语言工具。-Qt is a cross-platform C++ graphical user interface application development framework developed by Trolltech, a 1991. It can develop GUI programs, but also can be used for developing non-GUI programs such as console tools and servers. Qt is a object-oriented language, easy to expand and allow the component programming. The 2008 acquisition of Trolltech by Nokia, the QT interval and therefore Nokia' s programming language tools.