大家自己去体会，当下熊市下这种信号是相当少的。八月目前为止没有一只。七月初也分别选了每一天。只有几天里出现过信号。而且出来的股票也少。2-3只。
A1:=REF(C,2)/REF(C,3)<0.96 AND REF(O,2)/REF(C,2)>1.05;
A2:=BETWEEN(REF(O,1)/REF(C,2),1.02,0.98);
A3:=BETWEEN(O/REF(O,1),1.02,0.98) AND C/REF(C,1)>1.05 AND C/O>1.05;
U形:A1 AND A2 AND A3;
