當參數為 「True(by Value)」時,PowerShell 會先嘗試將任何管線值與該參數產生關聯,然後再嘗試其他方法來解譯命令。 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 param...
<# .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 查看預設值資訊。 PowerShell 複製 Get-Help TestDefaultValue -P...
To set default values for multiple parameters, separate eachKey/Valuepair with a semicolon (;). TheSend-MailMessage:SmtpServerandGet-WinEvent:LogNamekeys are set to custom default values. PowerShell $PSDefaultParameterValues= @{"Send-MailMessage:SmtpServer"="Server123";"Get-WinEvent:...
You can also use the Parameter parameter of theGet-Helpcmdlet to find information about a particular parameter. Or, you can use theParameterparameter with the wildcard character (*) value to find information about all parameters of the command. For example, the following command gets information...
Parameter [Path] PIPELINE INPUT ValueFromPipeline NO COERCION BIND arg [[file2].txt] to parameter [Path] Binding collection parameter Path: argument type [String], parameter type [System.String[]], collection type Array, element type [System.String], no coerceElementType Creating array with ...
第一个问题是,当使用DefaultParameterSetName=“All”(我必须这样做才能使脚本在命令行上没有任何开关的情况下工作)时,如果命令行上不存在$All变量,则该变量实际上并未设置为$True。为了克服这种行为,我不得不做出“如果”的判断。这就产生了下一个问题,因为我试图在其中使用的实际脚本将有15个或更多的-P#开关...
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....
When running native commands from PowerShell, the arguments are first parsed by PowerShell. The parsed arguments are then joined into a single string with each parameter separated by a space. For example, the following command calls theicacls.exeprogram. ...
Within the command or script in which it's used, the InformationAction common parameter overrides the value of the $InformationPreference preference variable, which by default is set to SilentlyContinue. When you use Write-Information in a script with InformationAction, Write-Information values are ...
类型:SwitchParameter Position:Named 默认值:False 必需:False 接受管道输入:False 接受通配符:False -Path 指定要搜索的文件的路径。 允许通配符。 默认位置是本地目录。 指定目录中的文件,例如log1.txt、*.doc或*.*。 如果仅指定目录,命令将失败。