如果<condition>表达式为 true,则执行<if-true>表达式 如果<condition>表达式为 false,则执行<if-false>表达式 例如: PowerShell复制 $message= (Test-Path$path) ?"Path exists":"Path not found" 在此示例中,当 返回 时,$message的值为Path exists。Test-Path$true$false返回 时Test-Path,的$messagePath ...
如果<condition>運算式為 False,就會執行<if-false>運算式 例如: PowerShell $message= (Test-Path$path) ?"Path exists":"Path not found" 在此範例中,如果路徑存在,就會顯示Path exists。 如果路徑不存在,則會顯示找不到路徑。 如需詳細資訊,請參閱關於 If。
Remove-Variable Select-Object Select-String Select-Xml Send-MailMessage Set-Alias Set-Date Set-MarkdownOption Set-PSBreakpoint Set-TraceSource Set-Variable Show-Command Show-Markdown Sort-Object Start-Sleep Tee-Object Test-Json Trace-Command ...
{get;} Exists Property System.Boolean Exists {get;} Extension Property System.String Extension {get;} FullName Property System.String FullName {get;} IsReadOnly Property System.Boolean IsReadOnly {get;set;} LastAccessTime Property System.DateTime LastAccessTime {get;set;} LastAccessTimeUtc Property ...
Object-Parallel{$using:test1$test2='TestB'1..2|Foreach-Object-Parallel{$using:test2} } Line |2|1..2|Foreach-Object-Parallel{ | ~~~ | The value of the using variable'$using:test2'can't be retrieved because it has | not been set in the local session. The nested scriptblock can...
I find RemoteSigned helpful in development and test environments, but it isn't necessary for the typical user. And I see no need for Unrestricted whatsoever, and wouldn't mind if some future version of Windows PowerShell omitted this overly permissive setting....
Actually using this regex in Windows PowerShell is pretty easy. Assuming the variable $email contains the e-mail address you read from the CSV file, something like this will check to see whether it's valid or not:Copy $regex = "^[a-z]+\.[a-z]+@contoso.com$" If ($email –not...
使用ls variable:列出当前使用的所有变量,刚启动的PowerShell执行此命令能看到PowerShell的所有自动化变量(一旦打开Powershell就会自动加载的变量) Name Value --- --- $ ? True ^ args {} ConfirmPreference High ConsoleFileName DebugPreference SilentlyContinue Error...
Detect if BitLocker Protection Status is 0, enable Detect if variable has been previously declared? Detect integrated (onboard) GPU using WMI Detect mapped drive path and disconnect if exists determine 32 or 64bit OS? Determine if service exists? Dialog box - execute a command if no button is...
在一个更大的脚本中，我包含了一个IF-THEN条件语句，如下所示：