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);V