function Test-MrParameter { param ( $ComputerName ) Write-Output $ComputerName } The following function queries all commands on your system and returns the number with specific parameter names. PowerShell Copy function Get-MrParameterCount { param ( [string[]]$ParameterName ) foreach ($Param...
function Test-ValueFromPipelineByPropertyName{ param( [Parameter(Mandatory, ValueFromPipelineByPropertyName)] [string[]]$ComputerName ) Write-Output -InputObject "Saw that ComputerName was '$ComputerName'" } 然後,使用 ComputerName 屬性來管線對象的示範會是: PowerShell 複製 [pscustom...
To use this function, type the following command: PowerShell Get-SmallFiles-Size50 You can also enter a value for a named parameter without the parameter name. For example, the following command gives the same result as a command that names theSizeparameter: ...
Parametersare defined by the names that appear in a function definition, whereasargumentsare the values actually passed to a function when calling it. Parameters define whatkind of argumentsa function can accept. For example, given the function definition: def func(foo, bar=None, **kwargs): pa...
If you create a function at the command line and then import a function with the same name, the original function is replaced. Finding hidden commands The ALL parameter of the Get-Command cmdlet gets all commands with the specified name, even if they're hidden or replaced. Beginning in ...
Powershell已经提供了许多用户能够使用的预定义函数,这些函数可以通过Function:PSDrive虚拟驱动器查看。 PSC:\PowerShell>Get-ChildItemfunction: |Format-TableName,Definition Name Definition---A:Set-Location$MyInvocation.MyCommand.Name B:Set-Location$MyInvocation.MyCommand.Name C:Set-Location$MyInvocation.MyCom...
functionGet-MrPSVersion{$PSVersionTable} 运行脚本时,不会发生任何事情。 PowerShell .\Get-MrPSVersion.ps1 如果尝试调用函数,则会生成错误消息。 PowerShell Get-MrPSVersion Output Get-MrPSVersion : The term 'Get-MrPSVersion' is not recognized as the name of a cmdlet, function, script file, or...
The InformationAction parameter overrides, but doesn't replace the value of the $InformationAction preference variable when the parameter is used in a command to run a script or function. -InformationVariable Introduced in PowerShell 5.0. When you use the InformationVariable common parameter,...
通过此例来分析script 和function的关系。 Script由普通的Function以及其他的逻辑语句(顺序、选择、循环)组成。 对pipeline input进行处理的script语句。其结构为 param(…) begin { … } process { … } end { … } PowerShell executes the begin statement when it loads your script, the process statement ...
The InformationAction parameter overrides, but doesn't replace the value of the $InformationAction preference variable when the parameter is used in a command to run a script or function. -InformationVariable Introduced in PowerShell 5.0. When you use the InformationVariable common parameter, informat...