ZF:=(C-REF(C,1))/REF(C,1)*100;
每天一个点:=C>O AND ZF<0 AND O STICKLINE(每天一个点,O,C,0.5,0),COLORMAGENTA;

{
选股公式:

ZF:=(C-REF(C,1))/REF(C,1)*100;
每天一个点:C>O AND ZF<0 AND O }