脚本块是 Microsoft .NET Framework 类型System.Management.Automation.ScriptBlock的实例。 命令可以包含脚本块参数值。 例如,Invoke-Commandcmdlet 有一个采用脚本块值的ScriptBlock参数,如以下示例所示: PowerShell Invoke-Command-ScriptBlock{Get-Process}
在PowerShell 中,ScriptBlock是一个可以执行的代码块,类似于其他编程语言中的匿名函数或 lambda 表达式。你可以将参数传递给ScriptBlock,以便在执行时使用这些参数。 基础概念 ScriptBlock:一个可以执行的 PowerShell 代码块。 参数传递:将变量或值传递给函数或代码块的过程。
PS> &"1+1"&: The term'1+1'is not recognized as a name of a cmdlet,function, script file, or executable program. Check the spelling of the name, orifa path was included, verify that the path is correct andtryagain. PS>Invoke-Expression"1+1"2 ...
To simplify the syntax forfilterfunctions, omit the script block keyword (begin,process,end,clean). PowerShell puts the statements in theprocessblock. You can use any of the other blocks in a filter function, but the intent was to provide a shorthand way of defining a function that has the...
在ScriptBlock参数的值中,使用$input自动变量来表示输入对象。 类型:PSObject Position:Named 默认值:None 必需:False 接受管道输入:True 接受通配符:False -LiteralPath 指定此 cmdlet 作为后台作业运行的本地脚本。 在本地计算机上输入脚本的路径。 Start-Job使用LiteralPath参数的值与所键入的形式完全相同。 不会将...
functionGet-CmdletAlias($cmdletName) {Get-Alias|Where-Object-FilterScript{$_.Definition-like"$cmdletName"} |Format-Table-PropertyDefinition, Name-AutoSize} functionCustomizeConsole {$hostTime= (Get-ChildItem-Path$PSHOME\pwsh.exe).CreationTime$hostVersion="$($Host.Version.Major)`.$($Host.Version...
The following is an example of a PowerShell function. function Set-Something { [CmdletBinding()] param ( [Parameter()] [string]$Thing ) Write-Host $Thing } A function contains one or more option parameters inside of a parameter block and a body. ...
The script block has been converted into a function.PS C:\> Get-Command Copy-Date CommandType Name Version Source --- --- --- --- Function Copy-Date You can use this function to create a quick function definition directly from the console. This lets you quickly prototype a function. If...
static [Book[]] FindAll([scriptblock]$Predicate) { [BookList]::Initialize() return [BookList]::Books.FindAll($Predicate) } # Remove a specific book. static [void] Remove([Book]$Book) { [BookList]::Initialize() [BookList]::Books.Remove($Book) } # Remove a book by property value...
An improved editing experience offers syntax highlighting, IntelliSense and code folding. You can quickly navigate your scripts with a function selection drop down. A rich debugging experience allows you to execute and single step through local and remote scripts. With support for breakpoints, the lo...