会买也要会卖 源码

N:=25;
A:=1,COLORGREEN;
顶:1.,COLORGREEN;
BOLL:=MA(CLOSE,N);
UPPER:=BOLL+2*STD(CLOSE,N);
LOWER:=BOLL-2*STD(CLOSE,N);
BB:(C-LOWER)/(UPPER-LOWER),COLORYELLOW,LINETHICK2;
买入:CROSS(BB,0),COLORMAGENTA;