最新的dxf解析库，dxflib是一个用来读写DXF文件的C++库，dxflib分析DXF文件，然后调用用户定义的回调函数。用户可以在回调函数中处理各种实体，或者将它们保存到容器中-Dxf parsing library, dxflib is used to read and write DXF files C++ library, dxflib analysis DXF file, and then call the user-defined callback function. Users can deal with various entities in the callback function, or save them to the container