通达信提前买入的指标，很好的一个指标，信号出现后一般都有一波不错的涨幅

VAR11:=EMA(HHV(HIGH,500),21);VAR2:=EMA(HHV(HIGH,250),21);VAR3:=EMA(HHV(HIGH,90),21);VAR4:=EMA(LLV(LOW,500),21);VAR5:=EMA(LLV(LOW,250),21);VAR6:=EMA(LLV(LOW,90),21);VAR7:=EMA((VAR4*0.96+VAR5*0.96+VAR6*0.96+VAR11*0.558+VAR2*0.558+VAR3*0.558)/6,21);VAR8:=EMA((VAR4*1.25+VAR5*1.23+VAR6*1.2+VAR11*0.55+VAR2*0.55+VAR3*0.65)/6,21);VAR9:=EMA((VAR4*1.3+VAR5*1.3+VAR6*1.3+VAR11*0.68+VAR2*0.68+VAR3*0.68)/6,21);VARA:=EMA((VAR7*3+VAR8*2+VAR9)/6*1.738,21);VARB:=REF(LOW,1);VARC:=SMA(ABS(LOW-VARB),3,1)/SMA(MAX(LOW-VARB,0),3,1)*100;VARD:=EMA(IF(CLOSE*1.35<=VARA,VARC*10,VARC/10),3);VARE:=LLV(LOW,30);
 VARF:=HHV(VARD,30);VAR10:=IF(MA(CLOSE,58),1,0);AA3:=( EMA(IF(LOW<=VARE,(VARD+VARF*2)/2,0),3)/618*VAR10) ;BB:=AA3>REF(HHV(AA3,60),1);CC:=HHV(AA3,60);大底:=FILTER(AA3>10 ,1) ;VA1:=VOL/((HIGH-LOW)*2-ABS(CLOSE-OPEN));主买1:=IF(CLOSE>OPEN,VA1*(HIGH-LOW),IF(CLOSE<OPEN,VA1*((HIGH-OPEN)+(CLOSE-LOW)),VOL/2));主卖1:=IF(CLOSE>OPEN,0-VA1*((HIGH-CLOSE)+(OPEN-LOW)),IF(CLOSE<OPEN,0-VA1*(HIGH-LOW),0-VOL/2));AA6:=(主买1-(-主卖1))/主买1;STICKLINE(大底>0 AND C<O ,0,CC,4,0),COLORYELLOW;DRAWTEXT(大底>0 AND C<O,CC,'*翌日阳，尾盘买。急跌后，信号较准');