Question

我如何创建像这样的数组：

$a -> [1] -> 
             [1] = value1
             [2] = value2
             .................
             [n] = valueN
      [2] -> 
             [1] = value1
             [2] = value2
             .................
             [n] = valueN

，依此类推。谢谢

我尝试过这样：

 $b = @{}

$b[0][0] = 1

$b[0][1] = 2

$b[0][2] = 3

$b[1][0] = 4

$b[1][1] = 5

$b[1][2] = 6

$b

但是它没有提供所需的输出

Answer 1

我认为这已经发布了很多次，但只需声明数组并为其赋值：

[array]$1 = "value1","value2"
[array]$2 = "value1","value2"

[array]$a = $1,$2

$a[0][0]

将从第一个输出-> value1

请注意，使用[array]声明数组是为了澄清，没有必要。如果添加逗号分隔的值，则变量将自动为数组。

编辑：您尝试过的是一个哈希表。哈希表包含一个键和一个值。数组只是值列表。哈希表的创建如下：

 $b = @{
    1 = @{
        1 = "value1"
        2 = "value2"
    }
    2 = @{
        1 = "value1"
        2 = "value2"
    }
    3 = "value3"
 }

$b

如您所见，您可以添加任意多个子级别。要显示第一个“ value1”的值，请输入：

$b[1].1

Answer 2

您也可以使用类方法，我更喜欢：

Add-Type -AssemblyName System.Collections

# Create class with needed members

class myListObject {
    [int]$myIndex
    [System.Collections.Generic.List[string]]$myValue = @()
}

# generic list of class

[System.Collections.Generic.List[myListObject]]$myList = @()

#create and add objects to generic list

$myObject = [myListObject]::new() 
$myObject.myIndex = 1
$myObject.myValue = @( 'value1', 'value2' )

$myList.Add( $myObject )

$myObject = [myListObject]::new() 
$myObject.myIndex = 2
$myObject.myValue = @( 'value3', 'value4' )

$myList.Add( $myObject )


# search items

$myList | Where-Object { $_.myIndex -eq 1 } | Select-Object -Property myValue


$myList | Where-Object { $_.myValue.Contains('value3') } | Select-Object -Property myIndex

Answer 3

运行中的Windows Powershell答案。

to_list1: 2.211 s
to_list2: 6.629 s

如何在Powershell中创建多维动态数组

3 个答案: