<# .SYNOPSIS This is a test script that has a parameter with a default value. #> function TestDefaultValue { param( [PSDefaultValue(Help='Current directory')] [string]$Name = $PWD.Path ) $Name } 使用Get-Help 查看默认值信息。 PowerShell 复制 Get-Help TestDefaultValue -...
True (by Property Name) Indicates that you can pipe a value to the parameter, but the .NET Framework type of the parameter must include a property with the same name as the parameter. 例如,只有當值具有名為 Name 的屬性時,才可以使用管線將值傳送至 Name 參數。 注意 接受管線輸入 ()或(by...
$PSDefaultParameterValues.Add('Get-Process:Name','PowerShell') 前面示例中创建的哈希表被更新为包含新的键值对。 PowerShell PS>$PSDefaultParameterValuesName Value --- ---Get-Process:Name PowerShellGet-WinEvent:LogNameMicrosoft-Windows-PrintService/Operational Get-*:Verbose TrueSend-MailMessa...
false -Name <String[]> Specifies the service names for the service to be started. The parameter name is optional. You can use Name or its alias, ServiceName, or you can omit the parameter name. Required? true Position? 0 Default value None Accept pipeline input? True (ByPropertyName, By...
Add-Member Same NoteProperty with multiple values Add-NTFSAccess sometimes fails with: Cannot bind parameter 'Account'. Cannot convert value "groupname" to type "Security2.IdentityReference2". Error: "The trust relationship between the primary Add-printer command not working for remote computers Add...
You can also use the Parameter parameter of theGet-Helpcmdlet to find information about a particular parameter. Or, you can use theParameterparameter with the wildcard character (*) value to find information about all parameters of the command. For example, the following command gets information...
entry in this hash table defines a cmdlet, a parameter and a default value for that parameter. The hash table key is the name of the cmdlet, followed by a colon (:), and then the name of the parameter. The hash table value for this key is the new default value for the parameter....
That is it. When I run the function with no input parameters, it runs with a default value of 4. If I made the parameter mandatory, the function would ignore the default value and prompt. But when I have a default value assigned, it is always used unless it is overridden, so the ...
That is it. When I run the function with no input parameters, it runs with a default value of 4. If I made the parameter mandatory, the function would ignore the default value and prompt. But when I have a default value assigned, it is always used unless it is overridden, so the ar...
Output 复制 Key Value --- --- a Power b Shell $PSCmdlet包含一个对象,该对象表示正在运行的 cmdlet 或高级函数。可以在 cmdlet 或函数代码中使用对象的属性和方法来响应使用条件。 例如,ParameterSetName 属性包含正在使用的参数集的名称,ShouldProcess 方法将 WhatIf 和Confirm 参数动态添加到 cmdlet。有关...