所有对象
3DFace   3DPolyline   3DSolid  
AcadState   Application   Arc  
Attribute   AttributeReference   Block  
BlockRef   Blocks   Circle  
Dictionaries   Dictionary   Dim3PointAngular  
DimAligned   DimAngular   DimDiametric  
DimOrdinate   DimRadial   DimRotated  
DimStyle   DimStyles   Document  
Documents   Ellipse   ExternalReference  
Group   Groups   Hatch  
Hyperlink   Hyperlinks   IDPair  
Layer   Layers   Leader  
LightweightPolyline   Line   Linetype  
Linetypes   MenuBar   MenuGroups  
MInsertBlock   MLine   ModelSpace  
MText   PaperSpace   PlotConfiguration  
PlotConfigurations   Plot   Point  
PolyfaceMesh   PolygonMesh   Polyline  
PopupMenu   PopupMenus   Preferences  
PViewport   Raster   Ray  
Region   RegisteredApplication   RegisteredApplications  
SelectionSet   SelectionSets   Shape
Solid  Spline  Text 
TextStyle  TextStyles  Tolerance 
Toolbar  Toolbars  Trace 
UCS  UCSs  Utility 
View  Viewport  Viewports 
Views  XLine  XRecord