通达信、文华、博弈的副图使用，红绿色波段的KDJ参数15.5.3，粉青色波段的KDJ参数80.3.3，有买卖点提示和背离，共振提示点把握高，很好用
{多空双波段.背离.买卖点提示}
N:=20;
M:=60;
VAR1:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;
VAR2:=SMA(VAR1,3,1);
VAR3:=SMA(VAR2,3,1);
VAR4:=3*VAR2-2*VAR3;
波段线:VAR4,COLORRED,LINETHICK2;
趋势线:MA(VAR4,5),COLORGREEN,LINETHICK2;
DRAWICON(CROSS(VAR4,趋势线) AND VAR4<20,LOW*0.98,1);
DRAWICON(CROSS(趋势线,VAR4) AND VAR4>80,HIGH*1.02,2);
底背离:=LLV(LOW,10)=LOW AND NOT(LLV(VAR4,10)=VAR4) AND VAR4<20;
顶背离:=HHV(HIGH,10)=HIGH AND NOT(HHV(VAR4,10)=VAR4) AND VAR4>80;
STICKLINE(底背离,0,30,3,0),COLOR00FF00;
DRAWTEXT(底背离,40,'底背离'),COLOR00FF00;
STICKLINE(顶背离,70,100,3,0),COLORFF00FF;
DRAWTEXT(顶背离,60,'顶背离'),COLORFF00FF;
买点:CROSS(VAR4,趋势线) AND VAR4<20,COLORRED,NODRAW;
卖点:CROSS(趋势线,VAR4) AND VAR4>80,COLORGREEN,NODRAW;
DRAWTEXT(买点,LOW*0.95,'买'),COLORRED;
DRAWTEXT(卖点,HIGH*1.05,'卖'),COLORGREEN;
