{共振选股：布林站稳中轨+倍量不穿}
{布林参数20,2 和主图保持一致}
N:=20;
P:=2;
MID:=MA(C,N);
UPPER:=MID + P*STD(C,N);
LOWER:=MID - P*STD(C,N);

N1:=20;
{倍量阳线条件}
倍量阳:=V gt;=REF(V,1)*2 AND V=HHV(V,N1) AND C gt;O;
倍量距:=BARSLAST(倍量阳