指标基于价格均值与标准差构建，通过计算K、D、J三条曲线分析价格偏离与动量变化。K线反映价格偏离均值的程度，D线为K线的平滑，J线为两者的差值。指标通过颜色区分J线涨跌，并在特定条件满足时显示买入或卖出图标。
VAR1:=(H+L+O+C*2)/5;
VAR2:=EMA(VAR1,21);
VAR3:=STD(VAR1,23);
VAR4:=EMA(VAR1,2);
VARA:=(VAR1-VAR2)*100/VAR3;
K:(EMA(VARA,23)+100)/2-3,COLOR00FFFF,LINETHICK2;
D:SMA(K,5,1),COLORFFFF00,LINETHICK2;
J:4*K-3*D,COLORFF00FF,LINETHICK2;
IF(J>REF(J,1),J,DRAWNULL),COLORRED,LINETHICK2;
IF(J<REF(J,1),J,DRAWNULL)COLOR00BB00,LINETHICK2;
DRAWICON(FILTER(J>REF(J,1)AND J<REF(J,3)
AND J<K AND VAR4>REF(VAR4,1)
AND K>=REF(K,1)AND J<40
OR CROSS(J,K)AND CROSS(J,D)
AND J<40 OR J>REF(J,1)AND J<-20,7), J*0.8,1);
DRAWICON(FILTER(J<=REF(J,1) AND J>80,8), J*1.2,2);
