红娘子三色短线
指标源码：
红1:=SMA(MAX((C+L)/2-REF(C,1),0),3,1)*50;RS1:=SMA(MAX((C+H)/2-REF(C,1),0),3,1)*50;RS2:=SMA(ABS(C-REF(C,1)),3,1)*50;RS3:=SMA(MAX(C-REF(C,1),0),3,1)*50;红A:(红1*4)-(RS2),colorred;红B:(RS3*4)-(RS2),coloryellow;红C:IF((RS2/4)-(RS1)>红A,(RS2/4)-(RS1),DRAWNULL),COLOR0055FF;红D:(RS2/4)-(RS1),COLORFFFF00;
