public void Undo()
{
string lastWell = SelectWellLocations.Last();
//1.没有结束画线，lastPoint是多余点
if (!IsStopMove)
{
this.TrackAdorner.Track.Points.Remove(WellPointList.Last());
}
//2.结束画线
else
{
this.TrackAdorner.RemoveLastPoint();
}
UndoSelectWellLocationstHistory.Push(lastWell);
UndoWellPointListHistory.Push(WellPointList.Last());
WellPointList.Remove(WellPointList.Last());
SelectWellLocations.Remove(lastWell);
}
