请教高手，大智慧怎么选不出股票来？　[大智慧]

请教高手，大智慧怎么选不出股票来？，已下载一年日线数据及除权财务等数据。

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));
小盘:=(CAPITAL<100000);
中线强势:小盘 and BTma20 and BTvol120;