如何在PowerShell中创建数组数组? [英] How do I create array of arrays in PowerShell?

问题描述

我想在PowerShell中创建一个数组数组.

I want to create an array of arrays in PowerShell.

$x = @(
    @(1,2,3),
    @(4,5,6)
)

工作正常.但是，有时我在数组列表中只有一个数组.在这种情况下，PowerShell会忽略以下列表之一:

It works fine. However, sometimes I have only one array in the array list. In that situation, PowerShell ignores one of the lists:

$x = @(
    @(1,2,3)
)

$x[0][0] # Should return 1
Unable to index into an object of type System.Int32.
At line:1 char:7
+ $a[0][ <<<< 0]
    + CategoryInfo          : InvalidOperation: (0:Int32) [], RuntimeException
    + FullyQualifiedErrorId : CannotIndex

如何创建一个数组数组，即使该数组中只有一个数组项，也要保证它仍是二维数组?

How do I create an array of arrays, guaranteed it remains as a two-dimensional array even if the array has only one array item in it?

推荐答案

添加逗号以创建数组:

$x = @(
    ,@(1,2,3)
)

简单方法:

$x = ,(1,2,3)

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