bu:=cross(high,SAR(3,1,20));
sel:=cross(SAR(3,1,20),low);
var1:=last(high var2:=last(low>sar(3,1,20));
drawflagtext(bu,high,’買入’);
drawflagtext(sel,low,’賣出’);
drawtext(bu,LOW,’B’),valign0,align1,coloryellow,linethick2;
drawtext(sel,HIGH,’S’),valign2,align1,colorgreen,linethick2;
STICKLINE(low>SAR(3,1,20) and isdown,high,open,0.5,1),colorred;
STICKLINE(low>SAR(3,1,20) and isdown,close,open,7.5,1),colorred;
STICKLINE(low>SAR(3,1,20) and isdown,close,low,0.5,1),colorred;
STICKLINE(high STICKLINE(high STICKLINE(high drawflagtext(high=ref(high,1),high,’明日突破’+forcast(sar(3,1,20),max(var1,2))+’建議關注’);
drawflagtext(high drawflagtext(low>SAR(3,1,20) and low<=ref(low,1),low,'明日跌破'+forcast(sar(3,1,20),max(var2,2))+'注意止盈');
drawflagtext(low>SAR(3,1,20) and low>ref(low,1),low,’繼續持股’);