趋势:eMA(C,21)-eMA(C,89),COLORWHITE,LINETHICK2; 长:EMA(趋势,34),COLORGRAY,LINETHICK2;; 中:EMA(趋势,7),COLOR00bb00,LINETHICK2; 势:=2*(趋势-长),COLORSTICK; {- } 动力线:EMA(势,5),COLOR9900FF,LINETHICK2; PARTLINE(动力线