public void StoreDo(string option, Ele e)
{
Ele olde = null;
if (e.undoEle != null)
{
olde = e.undoEle.Copy();
}
Ele newe = e.Copy();
BufferedElement buff = new BufferedElement(e, newe, olde, option);
undoB.Add2Buff(buff);
e.undoEle = e.Copy();
}