用于地理信息系统的地图资源，朝阳区地图，数据格式.shp，.dbf,.shx用于mo的开发，可在vb,vb.net,vc,c++,c#各平台下使用-for the Geographic Information System, map, Chaoyang district maps, data format. AutoCAD,. Dbf. . shx mo for the development, in vb, vb.net, vc, c

北京地图，ＱＴ　编写北 京地图，ＱＴ　编写-Beijing map, QT to prepare Beijing map, QT to prepare Beijing map, QT to prepare