您也可以使用if語句 scriptblock 將值指派給變數。 PowerShell $discount=if($age-ge55) {Get-SeniorDiscount}elseif($age-le13) {Get-ChildDiscount}else{0.00} 每個腳本區塊都會將命令的結果或值寫入為輸出。 我們可以將if語句的結果指派給$discount變數。 該範例可以同樣輕鬆地直接在每個腳本區塊中將這些值分配...
if语句执行的第一步是计算括号中的表达式。 如果计算结果为$true,则执行大括号中的scriptblock。 如果值为$false,则会跳过该脚本块。 在上面的示例中,if语句仅计算$condition变量。 其计算结果为$true,将在脚本块内执行Write-Output命令。 在某些语言中,可以在if语句后放置一行代码,它将会得以执行。 在 PowerSh...
首先，创建一个server 对象实例，然后连接它。我只需要引入Script() 方法，脚本如下：
Del nosuchfile-terminating.txt -ErrorAction Stop } Write-Host "script start" Raise-NonTerminatingError Raise-TerminatingError Write-Host "script end" 其中后一个函数中删除不存在文件的操作将终止所有操作,即抛出了终止错误,图2所示为执行脚本时的输出。 图2 执行脚本时的输出 在上例中显示两次错误提示,non...
nonsenseString $Error[0].Exception.GetType().FullName Output 複製 nonsenseString: The term 'nonsenseString' is not recognized as a name of a cmdlet, function, script file, or executable program. Check the spelling of the name, or if a path was included, verify that the path is correct ...
问如果程序失败，powershell脚本将停止(如bash ` `set -o errexit`‘)ENLinux开源社区（微信号：cn_...
d+\.\d+\.\d+" # If not running on a build server, remind user to set environment variables for debugging if(-not ($Env:BUILD_SOURCESDIRECTORY -and $Env:BUILD_BUILDNUMBER)) { Write-Error "You must set the following environment variables" Write-Error "to test this script interactively....
This DLL can be found both in the SDK and in the GAC, but if you don't have the SDK installed, don't worry about it. This little script can easily create the Snap-In assembly. The first thing that I need to do is create an alias for the C# compiler, once that is established ...
PS C:\PowerShell> Remove-Item mossfly.com -ErrorAction "Stop"; Write-Host "工作完成" ObjectNotFound: (C:\PowerShell\mossfly.com:String) [Remove-Item], ItemNotFoundException PS C:\PowerShell> 每次执行命令都去设定ErrorAction那也忒麻烦了。有没有全局的设置呢,那就是$ErrorActionPreference,...
You stop the PowerShell script before it finishes running. In this scenario, the computer crashes. Additionally, you receive a Stop error message that resembles the following: STOP 0x000000F4 ( parameter 1, parameter 2, parameter ...