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;