SHORT:=12; LONG:=26; MID:=9; DIF:=Ema(CLOSE,SHORT)-EMA(CLOSE,LONG); DEA:=EMA(DIF,MID); JCCOUNT:=COUNT(crOSS(DIF,DEA),BArslAst(DEA>=0)); 二次金叉:CROSS(DIF,DEA) AND DEA<0 AND COUNT(JCCOUNT=2,21)=1;