牛象条件选股公式有错误

公式源码：

MA20:MA(C,20),COLORWHITE,LINETHICK2;
MA120:MA(C,120),COLORFFCCCC,LINETHICK2;
MA250:MA(C,250),COLORFFCC66,LINETHICK2;
乖离线:=((C-REF(MA20,1))/20+MA20)*1.20;
TT1:=CROSS(MA20,MA120) AND CROSS(MA20,MA250) AND V>REF(V,1);
TT2:=MA20>REF(MA20,2) AND V>REF(V,1) AND CROSS(C,MA20);
STICKLINE(TT1,L,L-0.09,4,0),COLORYELLOW;
DRAWTEXT(TT1,L-0.13,'金叉'),COLORYELLOW;
STICKLINE(CROSS(C,MA120) AND CROSS(C,MA250) AND CROSS(C,MA20),L,L-0.09,4,0),COLORYELLOW;
DRAWTEXT(CROSS(C,MA120) AND CROSS(C,MA250) AND CROSS(C,MA20),L-0.13,'并线开花'),COLORYELLOW;
STICKLINE(TT2,L,L-0.09,4,0),COLORYELLOW;
DRAWTEXT(TT2,L-0.13,'买点1'),COLORYELLOW;
STICKLINE(CROSS(C,乖离线),H,H+0.09,4,0),COLOR00FF00;
DRAWTEXT(CROSS(C,乖离线) ,H+0.13,'卖点'),COLOR00FF00;
STICKLINE(MA250>=REF(MA250,1) AND MA20>=REF(MA20,1) AND CROSS(C,MA250),L,L-0.09,4,0),COLORFFCC66;
DRAWTEXT(MA250>=REF(MA250,1) AND MA20>=REF(MA20,1) AND CROSS(C,MA250),L-0.13,'牛象'),COLORFFCC66;
STICKLINE(MA120>=REF(MA120,1) AND CROSS(C,MA20) AND CROSS(C,MA120) AND V>REF(V,1),L,L-0.09,4,0),COLORFF00FF;
DRAWTEXT(MA120>=REF(MA120,1) AND CROSS(C,MA20) AND CROSS(C,MA120) AND V>REF(V,1),L-0.13,'买点2'),COLORFF00FF ;
A1:=SUM(AMOUNT,3)/SUM(VOL,3)/100;
A2:=SUM(AMOUNT,8)/SUM(VOL,8)/100;
A3:=SUM(AMOUNT,21)/SUM(VOL,21)/100;
DIFF:=(EMA(CLOSE,12) - EMA(CLOSE,26));
DEA:=EMA(DIFF,9);
MACD:=2*(DIFF-DEA);
V1:=C-(A1+MA(C,3))/2;
V2:=C-(A2+MA(C,8))/2;
V3:=C-(A3+MA(C,21))/2;
VA1:=(C+V3-V1+MACD);
VA4:=(C+V2-V1+MACD);
短线:EMA(VA1,6),LINETHICK2,COLORYELLOW;