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