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