[IfcOrganization.Engages property 参与 public IfcCollection<IfcPersonAndOrganization> Engages { get; } 也可以看看 class IfcCollection<T> class IfcPersonAndOrganization class IfcOrganization 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]