请问关于接口问题

[zjbnyist]

amespace Excel
{
[TypeLibType(4096)]
[Guid("00020846-0000-0000-C000-000000000046")]
[InterfaceType(2)]
public interface Range
{
[DispId(1063)]
object AddIndent { get; set; }
[DispId(148)]
Application Application { get; }
[DispId(568)]
Areas Areas { get; }
[DispId(435)]
Borders Borders { get; }
[DispId(238)]
Range Cells { get; }
[DispId(240)]
int Column { get; }
[DispId(241)]
Range Columns { get; }
[DispId(242)]
object ColumnWidth { get; set; }
[DispId(910)]
Comment Comment { get; }
[DispId(118)]
int Count { get; }
[DispId(149)]
XlCreator Creator { get; }
[DispId(501)]
Range CurrentArray { get; }
[DispId(243)]
Range CurrentRegion { get; }
[DispId(543)]
Range Dependents { get; }
[DispId(545)]
Range DirectDependents { get; }
[DispId(546)]
Range DirectPrecedents { get; }
[DispId(246)]
Range EntireColumn { get; }
[DispId(247)]
Range EntireRow { get; }
[DispId(146)]
Font Font { get; }
[DispId(1392)]
FormatConditions FormatConditions { get; }
[DispId(261)]
object Formula { get; set; }
[DispId(586)]
object FormulaArray { get; set; }
[DispId(262)]
object FormulaHidden { get; set; }
[DispId(1380)]
XlFormulaLabel FormulaLabel { get; set; }
[DispId(263)]
object FormulaLocal { get; set; }
[DispId(264)]
object FormulaR1C1 { get; set; }
[DispId(265)]
object FormulaR1C1Local { get; set; }
[DispId(266)]
object HasArray { get; }
[DispId(267)]
object HasFormula { get; }
[DispId(123)]
object Height { get; }
[DispId(268)]
object Hidden { get; set; }
[DispId(136)]
object HorizontalAlignment { get; set; }
[DispId(1393)]
这段代码想说明什么问题？他的作用是什么。这是哪方面的知识。谢谢啦

[brucenan999]

[TypeLibType(4096)]
[Guid("00020846-0000-0000-C000-000000000046")]
[InterfaceType(2)]
方括号里的都是attributes,一些是系统自带的,一些应该是用户自定义的,你看看其它的文件里有没有继承了attribute的"类".