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