中轨 :MA(CLOSE,20),COLORRED,LINETHICK2;上轨:中轨+1*STD(CLOSE,20),COLORWHITE;下轨:中轨-1*STD(CLOSE,20),COLOR00FF00;上上轨:中轨+2*STD(CLOSE,20),COLORYELLOW;下下轨:中轨-2*STD(CLOSE,20),COLORFF00FF;VAR1:=SUM(MAX(MAX(HIGH-LOW,A(HIGH-REF(CLOSE,1))),ABS(LOW-REF(CLOSE,1))),25);VAR2:=HIGH-REF(HIGH,1);VAR3:=REF(LOW,1)-LOW;VAR4:=SUM(IF(VAR2>0 AND VAR2>VAR3,VAR2,0),25);VAR5:=SUM(IF(VAR3>0 AND VAR3>VAR2,VAR3,0),25);VAR6:=VAR4*100/VAR1;VAR7:=VAR5*100/VAR1;VAR8:=MA(ABS(VAR7-VAR6)/(VAR7+VAR6)*100,15);VAR9:=(VAR8+REF(VAR8,15))/2;DR