請高手編寫壹個通信達股票軟件中"白龍出水"選股公式且配副圖

DIF:=EMA(CLOSE,12)-EMA(CLOSE,26);

DEA:=EMA(DIF,9);

MACD:=(DIF-DEA)*2;

選股:CROSS(DIF,0)AND?REF(DIF,1)>REF(DIF,2)?AND?MACD>REF(MACD,1)?AND?REF(DIF,14)<0?AND?REF(DIF,8)<0;