通达信缩量阶梯副图+选股指标[查股公式]

通达信缩量阶梯副图+选股指标
{缩量阶梯}
N:=3;{}
A1:=EVERY(C<O AND V<REF(V,1),N);
A2:REF(C>O AND C>REF(C,1),N) AND A1;