本文选股公式根据以下股票公式改编：
http://www.gupang.com/202006/060351J92020.html
http://www.gupang.com/202006/060351J92020.html
A1A:=EMA(CLOSE, 9);
A1B:=((A1A-EMA(CLOSE,5))<0);
A1D:=BARSLAST(A1B);
A21:=IF((A1D>0),(0-2),0);
笑脸:((REF(A21,1)=(0-2)) AND (A21=0));
来源：Internet，编辑：股旁网，2020-06-03
A1A:=EMA(CLOSE, 9);
A1B:=((A1A-EMA(CLOSE,5))<0);
A1D:=BARSLAST(A1B);
A21:=IF((A1D>0),(0-2),0);
笑脸:((REF(A21,1)=(0-2)) AND (A21=0));