macd零下二次金叉的选股公式

编写要求：

以下是一个macd零下二次金叉的指标源码，请老师改一下，能实现零下的、第二次金叉的选股公式。非常感激，谢谢。SQX:=(C-MA(CLOSE,13))*100;DIFF:EMA(MA(SQX,7),1),COLOR00FFFF;DEA:EMA(DIFF,7),COLORFF33FF;MACD:(DIFF-DEA)*2,COLORSTICK;低位金叉:IF(CROSS(DIFF,DEA) AND DIFF<-0.1,30,0),COLORYELLOW;STICKLINE(低位金叉,0,15,8,0),COLORYELLOW;DRAWICON(低位金叉,0.3,1);JCCOUNT:=COUNT(CROSS(DIFF,DEA),BARSLAST(DEA>=0));二次金叉:IF(CROSS(DIFF,DEA) AND DEA<0 AND COUNT(JCCOUNT=2,21)=1,32,0),COLORFF00FF,LINETHICK2;A1:=BARSLAST(REF(CROSS(DIFF,DEA),1));底背离:IF(REF(CLOSE,A1+1)>CLOSE AND DIFF>REF(DIFF,A1+1) AND CROSS(DIFF,DEA),10,0),COLORRED;DRAWLINE(A1=0,DEA,底背离,DEA,0),COLORRED,LINETHICK2;A2:=BARSLAST(REF(CROSS(DEA,DIFF),1));顶背离:REF(CLOSE,A2+1)DIFF AND CROSS(DEA,DIFF),COLORGREEN;DRAWLINE(A2=0,DEA,顶背离,DEA,0),COLORGREEN,LINETHICK2;A3:=CROSS(DIFF,DEA) AND DEA<0;零下二次金叉:IF(FILTER(COUNT(A3,21)=2,10),70,0),COLOR0000FF,LINETHICK2;

解答：

SQX:=(C-MA(CLOSE,13))*100;