在输出上方添加行

Question

我正在创建一个自定义对象，如下所示：

$props = @{
  Name   = "John"
  Gender = "Male"
  Age    = 30
}
$c = New-Object PSObject -Property $props

对于上面的代码，输出将如下所示：

姓名 性别 年龄---- ------ ---约翰·马累 30

如何通过更改代码在输出上方添加更多行？

Answer 1

PS> $people=@()
PS> $people += [PsCustomObject]@{
  Name   = "John"
  Gender = "Male"
  Age    = 30
}
PS> $people += [PsCustomObject]@{
  Name   = "Jane"
  Gender = "Female"
  Age    = 20
}
PS> $people
Name Gender Age
---- ------ ---
John Male    30
Jane Female  20

Answer 2

您可以定义一个数组，然后将多个对象添加到该数组中：

#define as array
$people = @()
#build object with the data you want added
$person = New-Object System.Object
$person | Add-Member -NotePropertyName Name -NotePropertyValue "John"
$person | Add-Member -NotePropertyName Gender -NotePropertyValue "Male"
$person | Add-Member -NotePropertyName Age -NotePropertyValue 30
#add object to array            
$people += $person

然后，$people将仅包含约翰的详细信息：

> $people
Name Gender Age
---- ------ ---
John Male    30

然后，您可以以相同的方式添加其他人：

$person = New-Object System.Object
$person | Add-Member -NotePropertyName Name -NotePropertyValue "Jane"
$person | Add-Member -NotePropertyName Gender -NotePropertyValue "Female"
$person | Add-Member -NotePropertyName Age -NotePropertyValue 21
$people += $person

这会将另一个 person 对象添加到 people 数组中：

> $people
Name Gender Age
---- ------ ---
John Male    30
Jane Female  21

---

然后，您可以检索每个项目：

> $people[1]
Name Gender Age
---- ------ ---
Jane Female  21

或按名称排列的特定项目属性：

> $people[1].Name
Jane

并使用 foreach 循环从所有项和

> foreach ($person in $people) {
    Write-Output "$($person.Name) is a $($person.Age) old $($person.Gender)."
}
John is a 30 old Male.
Jane is a 21 old Female.