Qt4的中文说明文档，Qt是诺基亚开发的一个跨平台的C++图形用户界面应用程序框架。它提供给应用程序开发者建立艺术级的图形用户界面所需的所用功能。-Qt4 s Chinese documentation, Qt is a cross-platform developed by Nokia s C++ graphical user interface application framework. It provides application developers to build-the-art graphical user interface used for the required functionality.