求策略代码　[金字塔]

MA1:EMA(CLOSE,20)；
MA2:SMA(CLOSE,20,1)；
MA3:MA(C,244);


KD:MIN(MA1,MA2)>MA3 AND CROSS(MA2,MA1);//ma3上方ma1死叉ma2 开多
PD:CROSS(MA2,MA1);//死叉平多
KK:MAX(MA1,MA2)<MA3 AND CROSS(MA1,MA2);//ma3下方ma1金叉ma2开空
PK:CROSS(MA1,MA2);//金叉平空

SELL(PD,HOLDING,MARKET);
SELLSHORT(PK,HOLDING,MARKET);
BUY(KD AND HOLDING=0,1,MARKET);
BUYSHORT(KK AND HOLDING=0,1,MARKET);