SD:EMA(0.667REF(SK,1)+0.333SK,4);
DRAWBAND(SK,RGB(205,85,85),SD,RGB(23,123,123));
买进:IF(crOSS(SK,20) OR CROSS(SK,SD) AND SK 20,20,2),COLORYELLOW;
卖出:IF(CROSS(SD,SK) AND SK =60,80,99),COLORCYAN;
牛能分界:50,DOTLINE,COLORRED;