炒股就这一个指标足矣

A:=(3*C+L+O+H)/6;
X:=(20*A+19*REF(A,1)+18*REF(A,2)+17*REF(A,3)+16*REF(A,4)+15*REF(A,5)+
14*REF(A,6)+13*REF(A,7)+12*REF(A,8)+11*REF(A,9)+10*REF(A,10)+9*REF(A,11)+8*REF(A,12)
+7*REF(A,13)+6*REF(A,14)+5*REF(A,15)+4*REF(A,16)+3*REF(A,17)+2*REF(A,18)+
REF(A,20))/210;
主力成本:EMA(X,13),COLORFF00FF,LINETHICK0;
短期底部:LLV(HIGH,30),LINETHICK2,COLORFFCC00;
黄金线:(EMA(C,15)),POINTDOT,LINETHICK4,COLORYELLOW;
生命线:(MA(C,25)),LINETHICK2,COLORMAGENTA;
启动线:=EMA(SLOPE(CLOSE,21)*20+CLOSE,55),LINETHICK2,COLOR3C3CFF;

FF:=EMA(CLOSE,3);
MA15:=EMA(CLOSE,15);
DRAWTEXT(CROSS(FF,MA15),(LOW * 0.99),' B'),COLOR00FFFF;
DRAWTEXT(CROSS(MA15,FF),(HIGH * 1.03),'S'),COLOR00FF00;

{当天大单}
VAR3:=BUYVOL ;
VAR4:=SELLVOL;
VAR5:=IF(VAR3*C*100>200000,VAR3,0);{成交在20万以上的大单}
VAR6:=IF(VAR4*C*100>200000,VAR4,0);{成交在20万以上的大单}
委买:=SUM(VAR5,0);
委卖:=SUM(VAR6,0);
大单买卖比:委买/委卖;
{当天小单比}
小单买卖比:=1-大单买卖比;

VAR1:=VOL/((HIGH-LOW)*2-ABS(CLOSE-OPEN));
买:=IF(CLOSE>OPEN,VAR1*(HIGH-LOW),IF(CLOSE<OPEN,VAR1*((HIGH-OPEN)+(CLOSE-LOW)),VOL/2)),COLORRED;
卖:=IF(CLOSE>OPEN,0-VAR1*((HIGH-CLOSE)+(OPEN-LOW)),IF(CLOSE<OPEN,0-VAR1*(HIGH-LOW),0-VOL/2)),COLOR00FF00 ;

买卖差:=(买+卖);
买卖比:=ABS(买/卖);
N日内净流入:SUM (买卖差,N), NODRAW;