DIFF:=EMA(CLOSE,12)-EMA(CLOSE,27)COLORWHITE;DEA:=EMA(DIFF,9),COLORYELLOW;JCCOUNT:=COUNT(crOSS(DIFF,DEA),BArslAST(DEA>=0));一次金叉:CROSS(DIFF,DEA) AND DEA<0 AND COUNT(JCCOUNT=1,5)=1;