红娘子双线强弱，源码分享，贴图

MID:= (HIGH+LOW+CLOSE)/3;

红先锋:SUM(MAX(0,HIGH-REF(MID,1)),a)/SUM(MAX(0,REF(MID,1)-LOW),a)*100,colorred;

红娘子:REF(MA(CR,b),b/2.5+1),colorcyan;