N1 := 21; N2 := 10;  

WR1 := 100 * (HHV(HIGH, N1) - CLOSE) / (HHV(HIGH, N1) - LLV(LOW, N1));  

WR2 := 100 * (HHV(HIGH, N2) - CLOSE) / (HHV(HIGH, N2) - LLV(LOW, N2));  

选股条件: WR1 > WR2 AND (WR1 - WR2) > 80; // 短期WR上穿长期WR  

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