Bruce Payette的答案将起作用.语法对我来说似乎有点尴尬，但它确实有效.至少不是Perl.

The answer from Bruce Payette will work. The syntax seems a bit awkward to me, but it does work. At least it is not Perl.

执行此操作的另一种方法是使用ArrayList.对我来说，这种语法更清晰，并且更可能在六个月内被另一个开发人员(或我本人)理解.

Another way to do this would be with an ArrayList. To me, this syntax is more clear and more likely to be understood by another developer (or myself) in six months.

[System.Collections.ArrayList]$al = @()

$al.Add(@(1,2))
$al.Add(@(3,4))

foreach ($e in $al) {
    $e
    $e.GetType()
}