学会这个方法，抓10倍大牛股的概率提升10倍>>

N:=5;

P:=3;

OBV:SUM(IF(CLOSE>REF(CLOSE,n),VOL,IF(CLOSE<REF(CLOSE,n),-VOL,0)),0)/100000000000;

sub=CLOSE-REF(CLOSE,P);

RAI:sub/OBV;

DRAWTEXT(CROSS(OBV,rai),RAI,"终");

DRAWTEXT(CROSS(rai,OBV),OBV,"始");

a: 50;

b:-50;

C:0;