[IfcFillAreaStyleTileSymbolWithStyle.Symbol property 符号 public IfcAnnotationSymbolOccurrence Symbol { get; set; } 也可以看看 class IfcAnnotationSymbolOccurrence class IfcFillAreaStyleTileSymbolWithStyle 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]