[IfcDocumentInformation.Confidentiality property 保密 public IfcDocumentConfidentialityEnum Confidentiality { get; set; } 也可以看看 enum IfcDocumentConfidentialityEnum class IfcDocumentInformation 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
