IsNotNullOrEmpty如果值是字串,您可以使用靜態字串函式來檢查值是否為 $null 或同時為空字串。PowerShell 複製 if ( -not [string]::IsNullOrEmpty( $value ) ){...} 當我知道實值類型應該是字串時,我經常會使用這個 。當我檢查 $null 時我是一個防禦腳本手。 每當我呼叫函式並將它指派給變數時,我...
示例Get-Proc cmdlet 将输入验证属性(System.Management.Automation.ValidateNotNullOrEmptyAttribute)添加到 Name 参数,以启用输入既不是 null 也不是空的验证。 此属性是 Windows PowerShell 提供的多个验证属性之一。 有关其他验证属性的示例,请参阅 验证参数输入。 复制 [Parameter(Position = 0)] ...
修正Test-Path -IsValid以檢查無效的路徑和檔案名字符 (#21358) 新增RecommendedAction到ConciseView的錯誤報告(#20826)(感謝 @JustinGrote!)) 已新增 Cmdlet 的Remove-Item進度列 (#20778) (感謝 @ArmaanMcleod!) 因.NET 8 變更而修正Test-Connection(#20369) ...
$folder = "C:\Test\EmptyFolder" if ((Get-ChildItem $folder).Count -eq 0) { Remove-Item $folder } else { Write-Host "Directory is not empty" }这个脚本首先检查目录是否为空。如果目录为空,它会删除该目录,否则会输出提示信息。5. 删除符合条件的文件你可以通过 Get-ChildItem 与Where-Object ...
IsNotNullOrEmpty<T>(IList<T>) Method Reference Feedback Definition Namespace: Microsoft.Azure.PowerShell.Cmdlets.CosmosDB.Models Assembly: Microsoft.Azure.PowerShell.Cmdlets.CosmosDB.dll C# 复制 public static bool IsNotNullOrEmpty<T> (System.Collections.Generic.IList<T> ...
GitHub Discussions is a feature to enable free and open discussions within the community for topics that are not related to code, unlike issues. This is an experiment we are trying in our repositories, to see if it helps move discussions out of issues so that issues remain actionable by the...
This tutorial will introduce different methods to check if a string is not null or empty in PowerShell.
Stringify ErrorRecord with empty exception message to empty string (#24949) (Thanks @MatejKafka!) Add completion single/double quote support for -PSEdition parameter for Get-Module (#24971) (Thanks @ArmaanMcleod!) Error when New-Item -Force is passed an invalid directory name (#24936) (Than...
emptylines(useful when commenting a region)letg:NERDCommentEmptyLines=1" Enable trimmingoftrailing whitespace when uncommentingletg:NERDTrimTrailingWhitespace=1letg:coc_disable_startup_warning=1" Enable NERDCommenterToggle to check all selected lines is commented or notletg:NERDToggleCheckAllLines=1" ...
public override void EnterNestedPrompt() { throw new NotImplementedException("EnterNestedPrompt is not implemented. The script is asking for input, which is a problem since there's no console. Make sure the script can execute without prompting the user for input."); } //导致主机结束当前运行...