[IfcConstraint.IsRelatedWith property IsRelatedWith public IfcCollection<IfcConstraintRelationship> IsRelatedWith { get; } 也可以看看 class IfcCollection<T> class IfcConstraintRelationship class IfcConstraint 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]