这是C++ GUI QT4版本的例程，对学习QT程序有非常好的帮助！-This is the C++ GUI QT4 version of the routine, to learn QT program has a very good help!

qgis 地图二次开发，为初学者尽快掌握地图开发。对大家有很大帮助-Two the development of QGIS map, for beginners to quickly master the map development. There is a great help to you