[IfcRelSpaceBoundary.RelatingSpace property RelatingSpace public IfcSpaceBoundarySelect RelatingSpace { get; set; } 也可以看看 class IfcSpaceBoundarySelect class IfcRelSpaceBoundary 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]