请老师修改为通达信公式，谢谢。

BU:=CROSS(HIGH,SAR(3,1,20));
SEL:=CROSS(SAR(3,1,20),LOW);
VAR1:=LAST(HIGHVAR2:=LAST(LOW>SAR(3,1,20));
DRAWFLAGTEXT(BU,HIGH,'买入');
DRAWFLAGTEXT(SEL,LOW,'卖出');
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(HIGHSTICKLINE(HIGHSTICKLINE(HIGHDRAWFLAGTEXT(HIGH=REF(HIGH,1),HIGH,'明日突破'+FORCAST(SAR(3,1,20),MAX(VAR1,2))+'建议关注');
DRAWFLAGTEXT(HIGHDRAWFLAGTEXT(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,'继续持股');

BU:=CROSS(HIGH,SAR(3,1,20));
SEL:=CROSS(SAR(3,1,20),LOW);
VAR1:=BARSLAST(NOT(HIGH VAR2:=BARSLAST(NOT(LOW>SAR(3,1,20)));
DRAWTEXT(BU,HIGH,'买入');
DRAWTEXT(SEL,LOW,'卖出');
DRAWTEXT(BU,LOW,'B'),COLORYELLOW,LINETHICK2;
DRAWTEXT(SEL,HIGH,'S'),COLORGREEN,LINETHICK2;
STICKLINE(LOW>SAR(3,1,20) AND O>C,HIGH,OPEN,0,0),COLORRED;
STICKLINE(LOW>SAR(3,1,20) AND O>C,CLOSE,OPEN,2.5,1),COLORRED;
STICKLINE(LOW>SAR(3,1,20) AND O>C,CLOSE,LOW,0,0),COLORRED;
STICKLINE(HIGHO,HIGH,CLOSE,0,0),COLORCYAN;
STICKLINE(HIGHO ,CLOSE,OPEN,2.5,1),COLORCYAN;
STICKLINE(HIGHO,OPEN,LOW,0,0),COLORCYAN;
{DRAWTEXT(HIGH=REF(HIGH,1),HIGH,'明日突破'+FORCAST(SAR(3,1,20),MAX(VAR1,2))+'建议关注');
DRAWTEXT(HIGH DRAWTEXT(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');
DRAWTEXT(LOW>SAR(3,1,20) AND LOW>REF(LOW,1),LOW,'继续持股')};

{horiline函数在通达信上没有对应的替代函数，只能用drawline帮你了} {顶线} a61:=ref(ma(close,5),3)&lt;ref(ma(close,5),2); a6:=count(a61,3)&gt;=3 and ref(ma(close,5),1)&lt;=ref(ma(close,5),2) and ma(close,5)&lt;ref(ma(close,5),1); drawline(a6,hhv(high,8),10,10,0),colorred;{画长线} {底线} a71:=ref(ma(close,5),2)&lt;ref(ma(close,5),3); a7:=count(a71,3)&gt;=3 and ref(ma(close,5),2)&lt;=ref(ma(close,5),1) and ref(ma(close,5),1)&lt;ma(close,5); drawline(a7,llv(low,8),10,10,0),color00ff00;{画长线};