'宣言 Public MustInherit Class TrendLineBaseBuilder (Of T,TControl As TrendLineBase(Of T), TBuilder As TrendLineBaseBuilder(Of T,TControl,TBuilder)) Inherits ExtraSeriesBuilder(Of T,TControl,TBuilder)
public abstract class TrendLineBaseBuilder<T,TControl,TBuilder> : ExtraSeriesBuilder<T,TControl,TBuilder> where TControl: TrendLineBase<T> where TBuilder: TrendLineBaseBuilder<T,TControl,TBuilder>