X_1:=OPEN<CLOSE; X_2:=OPEN/REF(CLOSE,1)<=0.97; X_3:=CLOSE/OPEN>=1; X_4:=CLOSE/OPEN>1.02; X_5:=HIGH/LOW<CLOSE/OPEN<0.08; 低开:X_1 AND X_2 AND X_4 AND X_5,COLORWHITE;
