标线上穿零轴，强势波段开启，自零轴上下破零轴，波段结束，可结合前三个指标信号提前抄底逃顶，大道至简，经典中的经典
{先锋波段副图指标加密 无未来}
N:=14;
M:=6;
VAR1:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;
VAR2:=SMA(VAR1,M,1);
VAR3:=SMA(VAR2,5,1);
VAR4:=CROSS(VAR2,VAR3) AND VAR3<20;
VAR5:=CROSS(VAR3,VAR2) AND VAR3>80;
STICKLINE(VAR4,0,30,4,0),COLORRED;
STICKLINE(VAR5,70,100,4,0),COLORGREEN;
DRAWICON(VAR4,15,1);
DRAWICON(VAR5,85,2);
先锋线:VAR2,COLORWHITE;
波段线:VAR3,COLORYELLOW;
DRAWTEXT(CROSS(VAR2,VAR3) AND VAR3<30, VAR2*0.9, '买'),COLORRED;
DRAWTEXT(CROSS(VAR3,VAR2) AND VAR3>70, VAR2*1.1, '卖'),COLORGREEN;
