买牛布林线

买线1 :  MA(CLOSE,N),colormagenta,LINETHICK3;
顶线: 买线1 + P*STD(CLOSE,N);
底线: 买线1 - P*STD(CLOSE,N);
aa:=CLOSE/REF(C,1)>=1.09;
STICKLINE(aa,O,C,3,0),coloryellow;
STICKLINE(aa,L,H,0,0),coloryellow;
买线2:EMA(C,30),colorligray,LINETHICK1;
买线21:EMA(买线2,3),colorligray,LINETHICK1;
买线22:EMA(买线21,3),colorligray,LINETHICK1;
买线23:EMA(买线22,3),colorligray,LINETHICK1;
大牛趋势线:MA(CLOSE,60),colorblue,linethick3;