functionTest-MrParameter{param($ComputerName)Write-Output$ComputerName} 以下函数可查询系统中的所有命令,并返回带有特定参数名称的命令编号。 PowerShell functionGet-MrParameterCount{param( [string[]]$ParameterName)foreach($Parameterin$ParameterName) {$Results=Get-Command-ParameterName$Parameter-ErrorActionSil...
$script:var="Modified from function" It's a best practice to avoid modifying variables between scopes, because doing so can cause confusion. Instead, set the script scope variable equal to the output of the function. If the data in the function is in a variable, you can u...
$GetADef = "function ${Task} {$function:ActualFunctionName}" 例如,使用变量$Var失败: $GetADef = "function ${Task} {$function:$Var}" $function:${Var} | ~~~ | Variable reference is not valid. ':' was not followed by a valid variable name | character. Consider using ${} to delim...
FunctionTest-ScriptCmdlet{ [CmdletBinding(SupportsShouldProcess=$True)]Param($Parameter1)begin{}process{}end{} } 备注 这些块适用于所有函数,而不仅仅是使用CmdletBinding属性的函数。 begin 此块用于为函数提供可选的一次性预处理。 PowerShell 运行时会为管道中函数的每个实例使用此块中的代码一次。
function Test1 { param($a, $b) # Display the parameters in dictionary format. $PSBoundParameters } function Test2 { param($a, $b) # Run the Test1 function with $a and $b. Test1 @PSBoundParameters } PowerShell 复制 Test2 -a Power -b Shell Output 复制 Key Value --- --- a...
可以显示 hashtable in $p 并使用键名称属性来显示值。 PowerShell 复制 PS> $p Name Value --- --- PowerShell System.Diagnostics.Process (PowerShell) Notepad System.Diagnostics.Process (notepad) PS> $p.PowerShell Handles NPM(K) PM(K) WS(K) VM(M) CPU(s) Id ProcessName --- --- -...
PS C:\>function Say-Hello >> { >> Write-Host “Hello World from a function in PowerShell.” >> } >> PS C:\> Say-Hello PS C:\> Hello World from a function in PowerShell.定义函数的过程中会在当前作用域中自动创建同名对象,所以在调用函数时使用函数名即可,如:展开...
For PowerShell to see a file extension as executable in the current session, you must add the extension to the $env:PATHEXT environment variable. See also - about_Aliases - about_Functions - about_Path_Syntax - Alias-Provider - Function-Provider - Get-Command - Import-Module - Import-...
If you aren't using MFA, you should be able to use theCredentialparameter instead of theUserPrincipalNameparameter. First, run the command$Credential = Get-Credential, enter your username and password, and then use the variable name for theCredentialparameter (-Credential $Credential). If it do...
.Value+$Value}}Set-Item env:$Name-Value"$value"|Out-Null}functionSet-PersistentEnvironmentVariable...