在QT下用openGL开发的一个很漂亮的透视立方体，可旋转，可缩放。很经典-In the QT with the openGL developed under a very nice perspective cube, rotatable and scalable. Classic

Qt4教程中OpenGL与QPainter混合有错误，这是更正后的结果，修改其中的例子使其正确的显示-Qt4 tutorial OpenGL and QPainter mixed with error, which is the result of the corrected, modify the example so that it displays correctly