Variablecontents can't be modified at all. This option must already bespecified when the variable is created. Once specified thisoption cannot be changed. "Private" Thevariable is visible only in a particular context (localvariable). "AllScope" Thevariable is automatically copied in a new variab...
[Environment]::GetEnvironmentVariable('Foo') Output复制 Bar 可以通过为变量的值指定空字符串,使用SetEnvironmentVariable()方法删除环境变量。 例如,若要删除环境变量,请执行以下操作Foo: PowerShell复制 [Environment]::SetEnvironmentVariable('Foo','') [Environment]::GetEnvironmentVariable('Foo') Output复制...
true -InputObject <System.ServiceProcess.ServiceController[]> Specifies ServiceController objects that represent the services to stop. Enter a variable that contains the objects, or type a command or expression that gets the objects. Required? true Position? 0 Default value None Accept pipeline input...
$MyVariable=1,2,3$Path="C:\Windows\System32" 变量可用于存储命令的结果。 例如: PowerShell $Processes=Get-Process$Today= (Get-Date).DateTime 若要显示变量的值,请键入变量名称,前面带美元符号 ($)。 例如: PowerShell $MyVariable Output
删除变量:Clear-Variable -Name var或者clv var 查看变量类型:$var.GetType() 作用域:$[<scope-modifier>:]<name> = <value> 自动变量[5] 常用自动变量 $?:上一次执行成功。成功返回True $$:返回上一个指令的最后一个令牌(token) $^:返回第一个token ...
Everything you wanted to know about variable substitution in strings - PowerShell | Microsoft Docs 2Variable substitution 2Command substitution 3Command execution 2Format string ...
Get-PSDrive [[-Name] <String[]>] [-Scope <String>] [-PSProvider <String[]>] [-V erbose] [-Debug] [-ErrorAction <ActionPreference>] [-ErrorVariable <String>] [- OutVariable <String>] [-OutBuffer <Int32>] 使用PSProvider 参数,可以仅显示受特定提供程序支持的 PowerShell 驱动器。 例如...
Get-ChildItem [[-Filter] <string>] -LiteralPath <string[]> [-Include <string[]>] [-Exclude <string[]>] [-Recurse] [-Depth <uint>] [-Force] [-Name] [<CommonParameters>]说明Get-ChildItem cmdlet 获取一个或多个指定位置中的项。 如果该项为容器,则此命令将获取容器内的各项(称为子项)。
Windows PowerShell 3.0 包含現有 Cmdlet (包括簡化語法) 的新功能,以及下列 Cmdlet 的新參數:Computer Cmdlet、CSV Cmdlet、Get-ChildItem、Get-Command、Get-Content、Get-History、Measure-Object、Security Cmdlet、Select-Object、Select-String、Split-Path、Start-Process、Tee-Object、Test-Connection、Add-Member ...
Get-WinEvent[-ProviderName] <String[]> [-MaxEvents <Int64>] [-ComputerName <String>] [-Credential <PSCredential>] [-FilterXPath <String>] [-Force] [-Oldest] [<CommonParameters>] PowerShell复制 Get-WinEvent[-Path] <String[]> [-MaxEvents <Int64>] [-Credential <PSCredential>] [-Filter...