xxb:=CLOSE*VOL; xxbym:EMA((EMA(xxb,3)/EMA(VOL,3)+EMA(xxb,6)/EMA(VOL,6)+EMA(xxb,12)/EMA(VOL,12)+EMA(xxb,24)/EMA(VOL,24))/4,13),colorff00ff,LINETHICK0; yc:=(h+l)/2; 预明日:(EMA(zz,4))+(yc-ref(zz,3))/4; 昨测今: ref(预明日,1);