chart.ChartWizard(var,                    // Source.
                        COleVariant(short(4)), // Gallery     
                        covOptional,            
                        COleVariant((short)2),   // PlotBy:                
                        COleVariant((short)0),   // CategoryLabels.
                        COleVariant((short)0),   //                      
                        COleVariant((short)TRUE),  // HasLegend.
                        COleVariant("Chart of data"),  // Title.
                        COleVariant("时间(sec)"),    // CategoryTitle.
                        COleVariant("数值"),  // ValueTitles.
                        covOptional              // ExtraTitle.
                        );
生成了一张表,怎样通过改变Gallery参数获得无数据点的折线图??谢谢~~