MA5:=MA(CLOSE,5);MA5S:=MA(C,5);MA20S:=MA(C,20);MA30S:=MA(C,30);MA120S:=SMA(C,120,1);QSXS1:=MA5>REF(MA5S,1);QSXS2:=MA20S>REF(MA20S,1);QSXS3:=MA30S>REF(MA30S,1);DTPL:=MA20S>MA30S AND MA30S>MA120S;LYHT:=DTPL AND QSXS2 AND QSXS3 AND NOT(QSXS1) AND REF(QSXS1,1);老鸭回头:LYHT*50;