請教高手，大智慧怎么選不出股票來？

請教高手，大智慧怎么選不出股票來？，已下載一年日線數(shù)據(jù)及除權(quán)財務(wù)等數(shù)據(jù)。

ma20:=ma(close,20);
BTma20:= (close>ma20) and (ref(close,1)>ref(ma20,1)) and (ref(close,2)>ref(ma20,2));
vol120:=ma(vol,120);
BTvol120:= (vol > vol120) and (ref(vol,1) > ref(vol120,1)) and (ref(vol,2) > ref(vol120,2));
小盤:=(CAPITAL<100000);
中線強勢:小盤 and BTma20 and BTvol120;