MA1:=MA(CLOSE,5),COLORWHITE;MA2:=MA(CLOSE,10),COLORYELLOW;JC1:=MACD.macd>0;JC2:=CROSS(MA1,MA2);JC3:=MA(V,5)>MA(V,10);JC:=JC1 AND JC2 AND JC2 ;后金叉:JC AND CURRBARSCOUNT<20;