PS> $PSDefaultParameterValues Name Value --- --- Disabled True Get-WinEvent:LogName Microsoft-Windows-PrintService/Operational Get-*:Verbose True Send-MailMessage:SmtpServer ServerXYZ 若要重新启用$PSDefaultParameterValues,请删除Disabled键,或将Disabled键的值更改为$False。 的上...
自定义PowerShell函数,在设置参数的时候中,可以将参数设置为某些情况下可选,某些条件下又设置为必选。 示例代码从网站复制的。 1functionConnect-Somewhere2{3[CmdletBinding(DefaultParameterSetName='A')]4param5(6[Parameter(ParameterSetName='A',Mandatory=$false)]7[Parameter(ParameterSetName='B',Mandatory=$...
下面演示当可选参数出现,也必须使用这个强制参数。 functionConnect-Somewhere { [CmdletBinding(DefaultParameterSetName='A')]param( [Parameter(ParameterSetName='A',Mandatory=$false)] [Parameter(ParameterSetName='B',Mandatory=$true)]$ComputerName, [Parameter(ParameterSetName='B',Mandatory=$false)]$Crede...
定义多个参数集时,DefaultParameterSetNameCmdletBinding属性的关键字 (keyword) 将指定默认参数集。 如果 PowerShell 无法根据提供给命令的信息确定要使用的参数集,则使用默认参数集。 有关CmdletBinding属性的详细信息,请参阅about_Functions_CmdletBindingAttribute。
$PSDefaultParameterValues['Out-File:Encoding'] = 'Default' 但是问题还是存在,当我们关闭PS窗口,重新再打开一个的时候,输出文件编码又变回去了! 这是因为上述命令只会修改当前会话窗口的设置,如果想永久修改,还需要将配置写入PS的配置文件[2]。 这里我创建一个当前用户,当前主机的配置文件,文档中说,这个文件在...
Default parameter values Optional parameters have a default value, which is the value that is used or assumed when the parameter is not specified in the command. For example, the default value of theComputerNameparameter of many cmdlets is the name of the local computer. As a result, the lo...
Wouldn’t it be great if the PowerShell team thought about such a circumstance and give you a mechanism to specify which parameterset to pick if things were ambiguous? OH WAIT – they did! function test-param { [CmdletBinding(DefaultParametersetName=”p2″)] ...
When PowerShell (and Windows PowerShell) starts, it creates the$PSDefaultParametersautomatic variable. The variable has a type:System.Management.Automation.DefaultParameterDictionary. In other words, the variable is a Powershell hash table. By default, the variable is empty when you start PowerShell...
cmdlet parametreleri için varsayılan değerleri tanımlamak için, $PSDefaultParameterValues değişkenine uygun anahtar-değer çiftlerini içeren bir karma tablo atayın. Karma tablo birden çok anahtar-değer çifti içerebilir. Bu örnek, Send-MailMessage:S...
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...