编写条件：
请老师编写条件选股公式： 条件1：k线阴线收盘； 条件2：宝塔线显示红色；编写方法：
C1:=C;
C2:=REF(C,1);
C3:=REF(C,2);
A:=(C1>C2 AND C2>C3) OR
(C1>C2 AND C2<C3 AND C1>C3) OR
(C1<C2 AND C2>C3 AND C1<C3) OR
(C1<C2 AND C2>C3 AND C1>=C3) OR
(C2=C3 AND C1>C2) OR
(C1=C2 AND C1>C3);
A AND C<O;
