最简单的if语句包含单个命令,不包含任何elseif语句或任何else语句。 以下示例显示了 语句的最简单形式if: PowerShell if($a-gt2) {Write-Host"The value$ais greater than 2."} 在此示例中,如果$a变量大于2,则条件的计算结果为 true,并且语句列表将运行。 但是,如果$a小于或等于2或不是现有变量,则if语句不...
functionTest-NotTwo{ [CmdletBinding()]param( [Parameter(ValueFromPipeline)]$Input)process{if($Input-ne2) {return$Input}$exception= [System.Exception]::new('Input is 2')$errorId='InputTwo'$errorCategory='InvalidData'$errorRecord= [System.Management.Automation.ErrorRecord]::new($except...
# Enable -Verbose option[CmdletBinding()]# Regular expression pattern to find the version in the build number$VersionRegex="\d+\.\d+\.\d+\.\d+"# If not running on a build server, remind user to set environment variables for debuggingif(-not($Env:BUILD_SOURCESDIRECTORY-and$Env:BUILD_...
' Scope [4] (parent) $funcAVar1 = 'Value set in funcA' 如的ShowScopes輸出所示,您可以使用 並指定範圍號碼,從其他範圍Get-Variable存取變數。 範例5:在遠端命令中使用局部變數 針對在本機會話中建立之遠端命令中的變數,請使用using範圍修飾詞。 PowerShell 假設遠端命令中的變數是在遠端會話中建立的。
about_If about_Intrinsic_Members about_Jobs about_Job_Details about_Join about_Language_Keywords about_Language_Modes about_Line_Editing about_Locations about_Logging_Non-Windows about_Logging_Windows about_Logical_Operators about_Member-Access_Enumeration about_Methods about_Modules about_Module_Manifests...
PowerShell manages parameter binding as efficiently as possible. You can't suggest or force the PowerShell to bind to a specific parameter. The command fails if PowerShell can't bind the piped objects. For more information about troubleshooting binding errors, seeInvestigating Pipeline Errorslater ...
and theparameter nameis also "name". ByPropertyName means that these two have tomatchexactly in order to bind.So what if for the name parameter, we send anobjectthrough the pipeline instead of apropertythis time, since the Set-Cmdlet -Name parameter accepts input both...
$ver = $host | select version if ($ver.Version.Major -gt 1) {$Host.Runspace.ThreadOptions = "ReuseThread"} Add-PsSnapin Microsoft.SharePoint.PowerShell Set-location $home 该代码可用于获取 Windows PowerShell 的版本,检查版本是否高于 1,然后在满足该条件的情况下,它将设置线程模型,以使第一个...
pipeline yet. The initial output, based on$a, has already been written to the console. In other words, a cmdlet written for one-at-a-time processing bases its output on the first object received from the pipeline. This also implies that if you change the order of the items in the ...
If you want to change the command line in some unimplmented way in your custom key binding, you can use the methods: [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState [Microsoft.PowerShell.PSConsoleReadLine]::Insert [Microsoft.PowerShell.PSConsoleReadLine]::Replace [Microsoft.PowerShell.PS...