在 PowerShell 中访问对象属性的值 [英] Accessing values of object properties in PowerShell

问题描述

我正在浏览一组对象，我可以很好地显示这些对象.

I'm going through an array of objects and I can display the objects fine.

$obj

在我的 foreach 循环中很好地显示每个对象.我正在尝试访问对象字段及其值.此代码也可以正常工作:

displays each object in my foreach loop fine. I'm trying to access the object fields and their values. This code also works fine:

$obj.psobject.properties

为了只查看每个对象字段的名称，我这样做:

To just see the names of each object's fields, I do this:

$obj.psobject.properties | % {$_.name}

这也很好用.

当我尝试通过这样做访问这些字段的值时:

When I try to access the values of those field by doing this:

$obj.psobject.properties | % {$obj.$_.name}

没有返回或显示任何内容.

nothing is returned or displayed.

这样做是为了诊断目的，看看我是否可以访问字段的值.主要的困境是我无法访问特定字段的值.IE.

This is done for diagnostic purposes to see whether I can access the values of the fields. The main dilemma is that I cannot access a specific field's value. I.e.

$obj."some field"

即使我已经确认某个字段"有值也不会返回值.

does not return a value even though I have confirmed that "some field" has a value.

这让我很困惑.有谁知道我做错了什么?

This has baffled me. Does anyone know what I'm doing wrong?

推荐答案

一旦你遍历了 foreach 中的属性，它们就会通过 $_(当前对象符号)变得可用.就像您使用 $_.Name 打印属性名称一样，使用 $_.Value 将打印它们的值:

Once you iterate over the properties inside the foreach, they become available via $_ (current object symbol). Just like you printed the names of the properties with $_.Name, using $_.Value will print their values:

$obj.psobject.properties | % {$_.Value}

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