一:老鸭头选股公式MA5 := MA(CLOSE,5);MA10 := MA(CLOSE,10);MA60 := MA(CLOSE,60);A1 := REF(MA60,1) REF(MA60,2) AND MA60 REF(MA60,1);A2 := REF(MA5,1) REF(MA5,2) AND MA5 REF(MA5,1);A3 := REF(MA10,1) REF(MA10,2) AND MA10 REF(MA10,1);A4 := REF(CLOSE,1)/REF(CLOSE,2)