东软教学大作业，采用QT编写一个地图导航软件，要求加载一张图片，然后可以在该图片上面划点自动连线，随后小车图片自动沿该路线行驶。-Neusoft teaching large operations, using QT to prepare a map navigation software, a picture is required to load a picture, and then you can draw a line on the picture above, then the ca