请教vb 数组访问效率问题

请教
$var = "hello",$var2 = 2
arrary[0] =$var
arrary[1] =$var2
访问的时候

$var3 = arrary[0]，$var4 = arrary[1]，快还是
$var3 = arrary[$var]，$var4 = arrary[$var2]
快？