private void hslCurveHistory1_onCurveDoubleClick(HslControls.HslCurveHistory hslCurve, int index, DateTime dateTime)
 {
     MessageBox.Show($"Index: {index} Time:{dateTime.ToString( )}");
 }
 private void HslCurveHistory1_onCurveRangeSelect(HslControls.HslCurveHistory hslCurve, int index, int end)
 {
     label4.Text = DateTime.Now.ToString("HH:mm:ss") + "  Start:" + index + "  End:" + end;
 }
 private void HslCurveHistory1_onCurveRangeSelect(HslControls.HslCurveHistory hslCurve, HslControls.HslMarkForeSection foreSection)
 {
     label4.Text          = DateTime.Now.ToString("HH:mm:ss") + "  Start:" + foreSection.StartIndex + "  End:" + foreSection.EndIndex;
     foreSection.MarkText = "这是标记的自定义的数据";
 }