Question

我想在Powershell中创建一个对象，该对象存储有关脚本状态的信息。我可以这样做：

$myScriptObject = 
    @("status", "Selected Operation(s):", "None"), 
     ("status", "Current Operation:", "None"), 
     ("status", "Current Step:", "Prompting for Script Action" ),
     ("test", "This is just for testing", "1,2,3") `
    | ForEach-Object {[pscustomobject]@{kind = $_[0]; name = $_[1]; value 
= $_[2]}}

那行得通：

$myScriptObject

kind   name                     value                      
----   ----                     -----                      
status Selected Operation(s):   None                       
status Current Operation:       None                       
status Current Step:            Prompting for Script Action
test   This is just for testing 1,2,3

...我什至可以做到：

foreach($myObject in $myScriptObject) {
    if ($myObject.kind -eq 'status') {
        Write-Host $myObject.name $myObject.value
    }
}

输出以下内容：

Selected Operation(s): None
Current Operation: None
Current Step: Prompting for Script Action

我的问题是： 1.如何在$ myScriptObject中添加以下内容：

-kind "ActionMenuChoice" -Name "Do This" -Value 1
-kind "ActionMenuChoice" -Name "Do That" -Value 2

如何更改对象中已有的项目？

status Current Step: Prompting for Script Action

到

status Current Step:            Prompting for Login

还是我要解决所有问题？这个想法来自于难于从函数返回大量变量的困难，而我阅读使用对象在函数中来回传递要好得多，并且发现使用对象更容易跟踪并在一定程度上进行操纵。

干杯！

Answer 1

如果我们保留当前的对象数组结构，则可以通过强制转换$myScriptObject将[collections.generic.list[object]]创建为通用列表类型。然后，您可以使用.Add()方法将项目添加到您的集合中。

[collections.generic.list[object]]$myScriptObject = 
    @("status", "Selected Operation(s):", "None"), 
     ("status", "Current Operation:", "None"), 
     ("status", "Current Step:", "Prompting for Script Action" ),
     ("test", "This is just for testing", "1,2,3") |
        ForEach-Object {[pscustomobject]@{kind = $_[0]; name = $_[1]; value = $_[2]}}

[void]$myScriptObject.add([pscustomobject]@{"Kind" = "ActionMenuChoice"; "Name" = "Do This"; "Value" = 1})
[void]$myScriptObject.add([pscustomobject]@{"Kind" = "ActionMenuChoice"; "Name" = "Do That"; "Value" = 2})

如果要更新该集合中的项目属性，则首先需要在集合中找到对象/项目，然后访问要更新的属性。

($myScriptObject | Where-Object {$_.name -eq 'Current Step:'}).value = "Prompting for Login"

Where-Object可以提供定位目标对象所需的条件。然后，您可以使用object.property语法访问该属性。使用PowerShell对象，可以执行直接分配语法（object.property = value）来更新属性值。

Answer 2

我会改用数据表：

<ContentPage.ToolbarItems>
        <ToolbarItem Icon="icon.png"  />
    </ContentPage.ToolbarItems>

PowerShell：将“行”添加到自定义对象

2 个答案: