识别验证码,2018年3月15日,用于个别验证码识别功能具体实现(Identification authentication code, March 15, 2018, for individual verification code recognition function specific implementation)

利用VS2015和QT5做一个全屏显示窗口，利用eDrawing2018软件显示二维的AutoCAD地图。(Using VS2015 and QT5 to make a full-screen display window, using eDrawing 2018 software to display two-dimensional AutoCAD map.)

中国矢量地图，2018年4月版本，使用前请查看license(These data were extracted from the GADM database, version 3.4, April 2018. They can be used for non-commercial purposes only. It is not allowed to redistribute these data, or use them for commercial purposes, without p