主题：求助高手，改写TB交易系统到金字塔

Params
      Numeric Length(30);
      Numeric NumATRs(1);
   Numeric Offset(1);
   Numeric ATRLength(40);
  
Vars
      NumericSeries TPrice;
      Numeric AvgValue;
      NumericSeries ShiftValue;
      Numeric UpperBand;
      Numeric LowerBand;
      Numeric MyPrice;
  

Begin
    
  TPrice=(High[1]+Low[1]+Close[1])/3;
     AvgValue=AverageFC(TPrice,Length);
     ShiftValue=NumATRs*AvgTrueRange(ATRLength);
     UpperBand=AvgValue+ShiftValue[1];
     LowerBand=AvgValue-ShiftValue[1];
  
 
If(MarketPosition!=1&&High>=UpperBand)
   {
      MyPrice=UpperBand;
      If(Open>MyPrice)MyPrice=Open;
      Buy(1,MyPrice);
      Return;
   }
If(MarketPosition!=-1&&Low<=LowerBand)
{
     MyPrice=LowerBand;
     If(Open<MyPrice)MyPrice=Open;
     SellShort(1,MyPrice);
     Return;
}

End