XS語法何處有誤?

S腳本

if close cross under value51

and (value1 <= value1[1] or value1 < 0)

and average(value21,5) < 0

and (value33 <= value33[1] or Value33 < 0 )

and (value43 <= value43[1] or value43 <=0)

{and close[1] > value51 }

then ret=1;

B腳本

if close cross under value51

and (value1 <= value1[1] or value1 < 0)

and average(value21,5) < 0

and (value33 <= value33[1] or Value33 < 0 )

and (value43 <= value43[1] or value43 <=0)

{and close[1] > value51 }

then begin

value61=close;

end;

if close <= value61*0.995 then ret=1;

這兩個當沖腳本是ˋ希望先賣後買， 但是執行時，買的訊號會提早發生

如何把資料抓取時間設在開盤前一分鐘或前一筆資料開始，避免從 前一個訊號點開始計算?