Start with the Test-MrParameter function that was used in the previous section. PowerShell Copy function Test-MrParameter { param ( $ComputerName ) Write-Output $ComputerName } There are a couple of different ways to see the common parameters. One is by viewing the syntax with Get-Comman...
Parameter attribute The Parameter attribute is used to declare the attributes of function parameters. The Parameter attribute is optional, and you can omit it if none of the parameters of your functions need attributes. But, to be recognized as an advanced function, rather than a simp...
If a function parameter accepts pipeline input, and aprocessblock isn't defined, record-by-record processing fails. In this case, your function only executes once, regardless of the input. end Use this block to provide optional one-time post-processing for the function. ...
下面演示当可选参数出现,也必须使用这个强制参数。 functionConnect-Somewhere { [CmdletBinding(DefaultParameterSetName='A')]param( [Parameter(ParameterSetName='A',Mandatory=$false)] [Parameter(ParameterSetName='B',Mandatory=$true)]$ComputerName, [Parameter(ParameterSetName='B',Mandatory=$false)]$Crede...
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 ...
Default parameter values Optional parameters have a default value, which is the value that is used or assumed when the parameter is not specified in the command. For example, the default value of theComputerNameparameter of many cmdlets is the name of the local computer. As a result, the lo...
The parameter description should include the default value. You can also set a custom default value for any parameter of a cmdlet or advanced function. For information about setting custom default values, see about_Parameters_Default_Values. Parameter attribute table When you use the Full, ...
Causes PowerShell to leave the current scope, such as a script or function, and writes the optional expression to the output.Syntax:Syntax Kopēt return [<expression>] staticSpecifies the property or method defined is common to all instances of the class in which it is defined....
PowerShell 3.0, modules are imported into a session automatically the first time a user runs a cmdlet that is part of the module. AddInvoke-Commandto run anImport-Modulecommand in the workflow server session. The optionalVerboseparameter displays the functions that the module adds to the session...
Remove-LMFunction -FunctionName <String> -Qualifier <String> -Select <String> -PassThru <SwitchParameter> -Force <SwitchParameter> -ClientConfig <AmazonLambdaConfig> Description Deletes a Lambda function. To delete a specific function version, use theQualifierparameter. Otherwise, all versions and ...