MID:MA(CLOSE,21),COLORWHITE;
 UPPER:MID + 1.96*STD(CLOSE,21),COLORYELLOW;
 LOWER:MID - 1.96*STD(CLOSE,21),COLORYELLOW;
 UP:MID + 2.58*STD(CLOSE,21),COLORFF00FF;
 LOOW:MID - 2.58*STD(CLOSE,21),COLORFF00FF;
 {1.96统计学中为95％可信区间，2.58为99％可信区间，故采用1.96和2.58作为参数}

单边上升:=(C>MID);
单边下降:=(C 布林线开口:=UP-LOOW;
多头行情:=C>MA(C,5) AND MA(C,5)>MA(C,10);
股价在高位:=((C-LLV(C,30))/(HHV(C,30)-LLV(C,30))>0.6);
股价在低位:=((C-LLV(C,30))/(HHV(C,30)-LLV(C,30))<0.4);
布林线缩口:=((UPPER-MID)/MID<0.05);
 STICKLINE(单边上升,MID,UP,6,0),COLOR330066;
 STICKLINE(单边下降,LOOW,MID,6,0),COLOR545454;
 DRAWTEXT(布林线缩口,MID,'▲'),COLORWHITE;

 STICKLINE((OPEN >= CLOSE),OPEN,CLOSE,3,0),COLORCYAN;
 STICKLINE((OPEN >= CLOSE),HIGH,LOW,0,0),COLORCYAN;
 STICKLINE((OPEN < CLOSE),OPEN,CLOSE,3,0),COLORRED;
 STICKLINE((OPEN < CLOSE),HIGH,LOW,0,0),COLORRED;

 MID,COLORWHITE;
 UPPER,COLORYELLOW;
 LOWER,COLORYELLOW;
 UP,COLORFF00FF;
 LOOW,COLORFF00FF;
 DRAWTEXT(单边上升 AND REF(C,1)>REF(UP,1) AND C < UP ,UP*1.08,'减仓'),COLOR00FF00;
 DRAWTEXT(REF(布林线开口,1)=HHV(布林线开口,20) AND 单边上升,UP*1.08,'卖出'),COLORWH