该指标要用在上升趋势中。原来想屏蔽下降趋势，但屏幕下降趋势要画趋势线，会含有未来函数，怕大家不喜欢。
VAR1:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100;
VAR2:=SMA(VAR1,3,1);
VAR3:=SMA(VAR2,3,1);
VAR4:=3*VAR2-2*VAR3;
VAR5:=CROSS(VAR4,VAR2) AND VAR2<20;
VAR6:=CROSS(VAR2,VAR4) AND VAR2>80;
DRAWICON(VAR5,LOW*0.98,1);
DRAWICON(VAR6,HIGH*1.02,2);
