foreach ($<item> in $<collection>){<statement list>} 括号内的 语句部分foreach表示要循环访问的变量和集合。 PowerShell 在循环运行时自动foreach创建变量$<item>。 每次迭代开始时,foreach将项变量设置为集合中的下一个值。 块{<statement list>}包含要针对每个迭代执行的命令。
執行此作業的常見方式是使用 foreach 語句(§8.4.4)和 ForEach-Object cmdlet。 代表列舉器的物件類型在 §4.5.16中進行說明。 在本章中,有數據表列出指定類型的可存取成員。 針對方法,Type 會以下列形式撰寫:returnType/argumentTypeList。 如果自變數類型清單太長而無法放入該資料行中,則會改為顯示在 [目的]...
param( [String]$scriptName ) $cmdLine="""$scriptName""$args& set" &$Env:SystemRoot\system32\cmd.exe /c$cmdLine| select-string'^([^=]*)=(.*)$'|foreach-object{ $varName=$_.Matches[0].Groups[1].Value $varValue=$_.Matches[0].Groups[2].Value set-itemEnv:$varName$varValue } ...
[string[]]$ComputerName=$env:COMPUTERNAME)foreach($Computerin$ComputerName) { Write-Verbose -Message"Attempting to perform some action on $Computer"Write-Output$Computer} } 管道输入 若要接受按值显示管道输入,请为该特定参数指定ValueFromPipeline参数属性。 接受按属性名称显示的管道输入是类似的,但它是...
Get-Command[[-ArgumentList]<Object[]>][<CommonParameters>]Get-Command[[-Name]<string[]>][[-ArgumentList]<Object[]>][<CommonParameters>]# 参数-All-ArgumentList<Object[]>-CommandType<CommandTypes>-FullyQualifiedModule<ModuleSpecification[]>-ListImported-Module<string[]>-Name<string[]>-Noun<stri...
ForEach-Object[-InputObject <PSObject>] [-MemberName] <String> [-ArgumentList <Object[]>] [-WhatIf] [-Confirm] [<CommonParameters>] PowerShell ForEach-Object-Parallel [-InputObject <psobject>] [-ThrottleLimit <int>] [-TimeoutSeconds <int>] [-AsJob] [-UseNewRunspace] [-WhatIf] [-...
CommandType Name Version Source --- --- --- --- Alias % -> ForEach-Object Alias ? -> Where-Object Alias ac -> Add-Content Alias asnp -> Add-PSSnapin Alias cat -> Get-Content Alias cd -> Set-Location Alias CFS -> ConvertFrom-String 3.1.0.0 Microsoft.PowerShell.Utility Alias chdir...
ForEach-Object[-InputObject <PSObject>] [-MemberName] <String> [-ArgumentList <Object[]>] [-WhatIf] [-Confirm] [<CommonParameters>] PowerShell ForEach-Object-Parallel [-InputObject <psobject>] [-ThrottleLimit <int>] [-TimeoutSeconds <int>] [-AsJob] [-UseNewRunspace] [-WhatIf] [-...
#2.变量描述可以通过-description 添加变量描述,但是变量描述默认不会显示,可以通过Format-List 查看。PSC:\test>new-variable name-Value"me"-Description"This is my name"PSC:\test>ls Variable:name|fl*# PSPath:Microsoft.PowerShell.CoreVariable::name ...
ForEach-Object[-InputObject <PSObject>] [-MemberName] <String> [-ArgumentList <Object[]>] [-WhatIf] [-Confirm] [<CommonParameters>] PowerShellCopy ForEach-Object-Parallel [-InputObject <psobject>] [-ThrottleLimit <int>] [-TimeoutSeconds <int>] [-AsJob] [-UseNewRunspace] [-WhatIf] ...