'宣言
Public Interface IRectangle Inherits GrapeCity.DataVisualization.Chart.ICloneable(Of IRectangle), GrapeCity.DataVisualization.Chart.IEquatable(Of IRectangle)
public interface IRectangle : GrapeCity.DataVisualization.Chart.ICloneable<IRectangle>, GrapeCity.DataVisualization.Chart.IEquatable<IRectangle>