[IfcDraughtingCallout.Contents property 内容 public IfcCollection<IfcDraughtingCalloutElement> Contents { get; set; } 也可以看看 class IfcCollection<T> class IfcDraughtingCalloutElement class IfcDraughtingCallout 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]
