T1:=C<O;{定义T1:当日收阴线(收盘价小于开盘价)}
T2:=REF(T1,1) AND T1 AND V>REF(V,1);{定义T2:昨日收阴+今日收阴+今日成交量大于昨日成交量}
T3:=REF(T2,1) AND T1 AND V<REF(V,1);{定义T3:昨日满足T2条件+今日收阴+今日成交量小于昨日成交量}
T4:=REF(T3,1) AND T1 AND V<REF(V,1);{定义T4:昨日满足T3条件+今日收阴+今日成交量小于昨日成交量}
XG:REF(T4,1) AND C>O;{选股/副图信号:昨日满足T4条件+今日收阳线(收盘价大于开盘价)};
