用以下公式基本面选股，为什么选不出如何股票？
var1:=Finance(54)>0;
Var2:=Finance(53)>0;
var3:=Finance(17)>0;
var4:=Finance(34)>1;
var5:=Finance(21)>0;
var6:=Finance(20)>0;
var7:=Finance(33)>0.01;
var8:=Finance(32)>0.5;
var9:=(Finance(20)-Finance(21))/Finance(20)>0.2;
BP:
var1 and var2 and var3 and var4 and var5 and var6 and var7 and var8 and var9;