指标主要观察带状线的白线和紫线决定进出，黄色粗线是强弱分界，当线带在低位扭转白线上穿紫线时是买进信号（红色圈），当线带在高位扭转白线下穿紫线时是卖出信号（黄色圈）。
VAR1:=(CLOSE-REF(CLOSE,1))/REF(CLOSE,1)*100;
VAR2:=(CLOSE-LLV(LOW,13))/(HHV(HIGH,13)-LLV(LOW,13))*100;
VAR3:=SMA(VAR2,8,1);
A2:EMA(VAR3,3),COLORFFDDCC,LINETHICK2;
A3:EMA(A2,3),COLORFFBBCC;
A4:EMA(A3,3),COLORFF99CC;
A5:EMA(A4,3),COLORFF55CC;
A6:EMA(A5,3),COLORFF33CC;
A7:EMA(A6,3),COLORFF11CC,LINETHICK2;
DRAWICON(CROSS(A2,A7),A2+2,9);
DRAWICON(CROSS(A7,A2),A7+4,2);
强弱分界:EMA(A5,34),coloryellow,LINETHICK2;
