利于C#和mapxtreme开发的一个web的gis系统！利于mapxtreme实现对地图的操作，由于版权问题只提供代码供参考！不提供所用的地图，-Conducive to C# And MapXtreme developed a web-gis system! MapXtreme conducive to the realization of the map operation, due to copyright issues to provide the code for reference