在上面的示例中,您可以看到添加了参数之后AllowEmptyString(),程序将接受Empty字符串。同样,当您添加AllowEmptyCollection()参数时,PowerShell将接受数组的空值。 function print_String{ [cmdletbinding()] param( [parameter(Mandatory=$True)] [AllowEmptyCollection()] [string[]]$stringarray ) Write-Output "Writ...
Writing a single string 在上面的示例中,您可以看到添加了参数之后AllowEmptyString(),程序将接受Empty字符串。同样,当您添加AllowEmptyCollection()参数时,PowerShell将接受数组的空值。 function print_String{ [cmdletbinding()] param( [parameter(Mandatory=$True)] [AllowEmptyCollection()] [string[]]$stringarr...
[AllowEmptyCollection] [AllowEmptyString] [AllowNull] [ArgumentCompleter] [ArgumentCompletions] [array] [bigint] [bool] [byte] [char] [cimclass] [cimconverter] [ciminstance] [CimSession] [cimtype] [CmdletBinding] [cultureinfo] [datetime] ...
12.3.3 AllowEmptyString 属性 此属性用于 script-parameter,以允许将空字符串作为强制参数的参数。 请考虑函数调用 Test,它具有以下参数块,调用方式如下: PowerShell 复制 param ( [parameter(Mandatory = $true)] [AllowEmptyString()] [string] $ComputerName ) Test "Red" # $computerName is "Red" Test...
param( [Parameter(Mandatory)] [AllowEmptyCollection()] [string[]]$ComputerName ) ValidateCount 驗證屬性 ValidateCount 屬性會指定參數接受的最小和最大參數值數目。 如果呼叫函式的命令中的參數值數目超出該範圍,則PowerShell會產生錯誤。 下列參數宣告會建立一到五個 參數值的 ComputerName 參數...
將選項IgnoreComments和AllowTrailingCommas新增至Test-JsonCmdlet (#23817) (感謝@ArmaanMcleod!) Get-Help 可能會報告屬性為ValueFromRemainingArguments管線功能的參數(#23871) 將LineNumber的類型變更為ulong在Select-String(#24075) (感謝 @Snowman-25!)) ...
function Get-Inventory { [CmdletBinding()] param ( [parameter(Mandatory=$true,ValueFromPipeline=$true)] [string[]]$computername, [parameter(Mandatory=$false)] [alias("PF")] [switch]$pingfirst, [parameter(Mandatory=$true,Position=0)] [AllowEmptyString()] [string]$class ) PROCESS { } } ...
Revert "Allow empty prefix string in 'Import-Module -Prefix' to overr… Apr 28, 2025 test Revert "Allow empty prefix string in 'Import-Module -Prefix' to overr… Apr 28, 2025 tools Update metadata.json (#25438) Apr 29, 2025
Allow empty prefix string in Import-Module -Prefix to override default prefix in manifest (#20409) (Thanks @MartinGC94!) Update variable/property assignment completion so it can fallback to type inference (#21134) (Thanks @MartinGC94!) Use Get-Help approach to find about_*.help.txt files...
Now, that’s not saying that you can’t get coerce PowerShell into treating those types as enumerators. The GetEnumerator() method can be used to extract the IEnumerable interface on an object and allow you to iterate through it’s pieces. ...