{指标介绍:当昨日收盘后收出上影线,股价处低位区多代表主力向上试盘,中高位区多意味主力上攻受阻。用此公式可在次日早盘开盘时选股或预警。}
K:=(H-maX(C,O))/(H-L)>0.55 AND H/L>1.05;XG:REF(K,1) AND C> REF(H,1);
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