上BOLL线买选股无未来

:=MA(CLOSE,20);

UB:=BOLL+1.2*STD(CLOSE,20);{九毛八公式指标网www.9m8.cn};

LB:=BOLL-1.2*STD(CLOSE,20);

BUYHAOGU:=CLOSE

XG:BUYHAOGU=1 AND REF(BUYHAOGU,1) 1;