通达信短线选股公式，说明
MTM:=C-REF(C,1); DX:=100*EMA(EMA(MTM,6),6)/EMA(EMA(ABS(MTM),6),6); YXF:=IF(LLV(DX,2)=LLV(DX,7) AND COUNT(DX<0,2) AND CROSS(DX,MA(DX,2)),1,0); XG:IF(FILTER(YXF=1,5),20,-10)=20;
