(string) ); line = line.Trim(' ','\t'); } catch (PSInvalidCastException ex) { WriteError(new ErrorRecord( ex, "CannotCastObjectToString", ErrorCategory.InvalidOperation, input) ); return null; } MatchInfo result = null; // If a scriptblock has been specified, call it // wit...
If you're using something like .NET directly from within your PowerShell function, you can't specify theErrorActionparameter on the command itself. You can change the$ErrorActionPreferencevariable just before you call the .NET method. Comment-based help ...
function <函数名称> { <语句> } 上面为无参数函数的定义。有参数函数的定义如下: function <函数名称> (<参数>) { <语句> } function <函数名称> { param(<参数>) <语句> } 函数的大括号和后面的语句可以写在一行中。 参数是一系列变量名称。在函数内修改参数不会修改外部同名变量的值(即使是数组也如...
& (Get-Command -Name Map -CommandType Function) or & (dir Function:\map) You can also save your hidden command in a variable to make it easier to run. For example, the following command saves the Map function in the $myMap variable and then uses the Call operator to run it. $myMap...
function Start-Something { throw "Bad thing happened" } 这会创建一个属于终止错误的运行时异常。 它由调用函数中的 catch 进行处理,或者退出脚本,并显示如下消息:PowerShell 复制 PS> Start-Something Bad thing happened At line:1 char:1 + throw "Bad thing happened" + ~~~ + CategoryInfo : Operati...
Call variable outside function Calling 'Get-Counter' remotely throws error 'Unable to connect to the specified computer or the computer is offline' Calling a function using Start-Job Calling a PowerShell code from Access 2010 Calling a program with powershell Calling a PS script from VBA with ...
Once a function is defined, you can use it like the built-in cmdlets. For example, to call the newly defined Get-PowerShellProcess function: PowerShell Copy Get-PowerShellProcess Output Copy NPM(K) PM(M) WS(M) CPU(s) Id SI ProcessName --- --- --- --- -- -- --- 110 ...
ScriptBlock属性可以在不查看文档的情况下显示在当前函数中包含的功能。下例获取当前函数的信息:展开表 PS C:\> $helloFunction.ScriptBlock Write-Host " Hello World from a function in PowerShell." PS C:\> &$helloFunction.ScriptBlock Hello World from a function in PowerShell.上例中使用了调用操作...
[] commandRedirections, FunctionContext funcContext) at System.Management.Automation.Interpreter.ActionCallInstruction`6.Run(InterpretedFrame frame) at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame) at System.Management.Automation.Interpreter.EnterTryCatchFinally...
the new-ProgressActionparameter is automatically available to cmdlets and advanced functions. This parameter allows you to control how progress is reported for a cmdlet or advanced function call. Previously, you would have to set$ProgressPreferencetoSilentlyContinueto suppress progress and then restore it...