30 # $a designates an object[], Length 3, value 10,20,30 $b = $a # $b designates exactly the same array as does $a, not a copy $a[1] = 50 # element 1 (which has a value type) is changed from 20 to 50 $b[1] # $b refers to the same array as $a, so $b[1] ...
PS> $empty = $null PS> $empty[0] Error: Cannot index into a null array. 因此,在尝试访问数组中的元素之前,请确保数组不是 $null。Count数组和其他集合具有计数属性,可告知数组中有多少项。PowerShell 复制 PS> $data.count 4 PowerShell 3.0 向大多数对象添加了计数属性。 你可以使用单个对象,它应该...
Length;$i++){ "`$iparray["+$i+"]="+$iparray[$i]+"`n" Invoke-Command -ComputerName $iparray[$i] -Credential $Cred -ScriptBlock { Get-WindowsFeature -Name NET-*, Web-* | where {$_.Name -notmatch "Ftp|Web-Application-Proxy"} | Install-WindowsFeature; } }...
Get-FileHash 文件路径 -Algorithm 校验的Hash值类型| Format-List PS: 如果需要校验的文件路径比较复杂,例如路径中包含空格、括号等特殊符号,则需要在路径前后加上英文双引号。 Windows PowerShell命令可以校验的Hash值类型包括:SHA1、SHA256、SHA384、SHA512、MACTripleDES、MD5、RIPEMD160,暂不支持校验CRC32值。
param( [Parameter(Mandatory)] [ValidateLength(1,10)] [string[]]$ComputerName ) 다음 예제에서 변수 $text 값은 길이가 최소 1자이고 최대 10자여야 합니다.PowerShell 복사 [ValidateLength(1,10)] [string] $text = 'valid' Vali...
在Get-WinEvent 中改写“拒绝访问”错误消息 (#10639)(感谢 @iSazonov!) 为枚举或类型受约束的变量赋值启用 Tab 自动补全 (#10646) 删除导致格式设置问题的未使用的 SourceLength 远程处理属性 (#10765) 将-Delimiter 参数添加到 ConvertFrom-StringData (#10665)(感谢 @steviecoaster!) ...
[-Command { - | [-args <arg-array>] | <string> [<CommandParameters>] } ] 以下的這些選項的說明。 -Help、/Help、-?、/?:顯示 Windows PowerShell 的啟動選項說明訊息。 -PSConsoleFile:載入指定的 Windows PowerShell 控制台檔案;Export-Console cmdlet 可以匯出 Windows PowerShell 環境的控制台檔案...
function Get-SmallFiles { param ($Size) Get-ChildItem $HOME | Where-Object { $_.Length -lt $Size -and !$_.PSIsContainer } } In the function, you can use the $Size variable, which is the name defined for the parameter. To use this function, type the following command: PowerShell ...
Automatic unraveling can also be confusing in the context of returning an object from a function call. If you would like to return an enumerable object from a function or script, you’ll want to wrap that object in an array using the unary comma operator. ...
$array = 1,2,3,4 $array = 1..4 $array=1,"2017",([System.Guid]::NewGuid()),(get-date) $a=@() # 空数组 $a=,"1" # 一个元素的数组 数组的访问 数组的访问和C类似,第一位元素实用下标0来访问即$array[0],我们来看看ipconfig获取到的数据 $ip = ipconfig $ip[1] # 获取ipconfig...