'宣言
<System.Diagnostics.DebuggerDisplayAttribute("\{ Key = {KeySelector} \}")> Public MustInherit Class Index(Of T) Inherits IndexDefinition(Of T) Implements C1.LiveLinq.Indexing.Search.IIndexScanner(Of T)
[System.Diagnostics.DebuggerDisplay("\{ Key = {KeySelector} \}")] public abstract class Index<T> : IndexDefinition<T>, C1.LiveLinq.Indexing.Search.IIndexScanner<T>