'宣言
Public Class _ImageOverlayOption Inherits _AnnotationOverlayOption Implements GrapeCity.DataVisualization.Chart.IOptionStrictMode, IAnnotationOverlayOption, IImageOverlayOption, IJsonOption, IOption, IOverlayOption
public class _ImageOverlayOption : _AnnotationOverlayOption, GrapeCity.DataVisualization.Chart.IOptionStrictMode, IAnnotationOverlayOption, IImageOverlayOption, IJsonOption, IOption, IOverlayOption