通达信--趋势尾端底部一字板恐慌盘放量

A1:=C=O AND H=L AND C<REF(C,1);
A2:=LOWRANGE(L)>100;
A3:=V>3*REF(V,1);
A4:=V>2*HSCOL.MAHSL(21);
GP:(A1 AND A2);{ OR (A3 AND A2 AND C<O) OR (A4 AND A2);};