学会这个方法，抓10倍大牛股的概率提升10倍>>

CG:MA(C,21),COLOR00FF00,LINETHICK2;

FL:HHV(CG,3),COLORFF0000,LINETHICK2;

FS:CG-(FL-CG),colorred,LINETHICK2;

上轨:MA(REF(HHV(C,21),1),21),CIRCLEDOT,COLOR00FFFF,LINETHICK0;

下轨:MA(REF(LLV(C,30),1),21),CIRCLEDOT,colorred ,LINETHICK0 ;