有关详细信息,请参阅 about_Automatic_Variables。 如果在没有管道输入的情况下调用函数,PowerShell 将只执行一 process 次块。 在管道中,process 块为到达函数的每个输入对象都执行一次。 如果到达函数的管道输入为空,则 process 块不会执行。 begin end和clean块仍在执行。 重要 如果函数参数接受管道输入,并且 ...
Don't statically assign values. Use parameters and variables instead. When naming your parameters, use the same name as the default cmdlets for your parameter names whenever possible. In the following function, notice that I usedComputerNameand notComputer,ServerName, orHostfor the parameter name....
批量修改文件属性 $Path=Split-Path-Parent$MyInvocation.MyCommand.Path$Files=Get-ChildItem-Path$Pathforeach($Filein$Files){$Years= 2022$Month=Get-Random-Minimum 1-Maximum 12$Day=Get-Random-Minimum 1-Maximum 30$Hours=Get-Random-Minimum 0-Maximum 24$Minutes=Get-Random-Minimum 0-Maximum 60$Second...
You can't retrieve it in the current session. Variables and aliases can't be hidden because you can't use a call operator or a qualified name to run them. When you import variables and aliases from a module, they replace variables in the session with the same name. Cmdlet name resolutio...
有关命名规则的完整列表,请参阅 about_Variables。重要 可以定义以十进制数字开头的参数。不建议使用数字启动参数名称,因为 PowerShell 将其视为作为位置参数传递的字符串值。请考虑以下示例:PowerShell 复制 function TestFunction { param ( [switch] $100, [string] $200 ) "100: $100" "200:...
such as functions and variables, are immediately available in the session and remain available until you close the session. Like static modules, by default, the cmdlets and functions in a dynamic module are exported and the variables and aliases are not. However, you can use the Export-ModuleMe...
$Cred=Get-CredentialInvoke-Command$s{Remove-Item.\Test*.ps1-Credential$Using:Cred} PowerShell 3.0 中引入了Using:作用域修饰符。 另请参阅 about_Environment_Variables about_Functions about_Script_Blocks about_Variables ForEach-Object Start-ThreadJob...
Runs a script in the current scope so that any functions, aliases, and variables that the script creates are added to the current scope, overriding existing ones. Parameters declared by the script become variables. Parameters for which no value has been given become variables with no value. How...
Join this webcast to learn about the variables, language constructs, scripts, and functions in Windows PowerShell. In this one-hour crash course, we demonstrate how the simple but effective scripting language in Windows PowerShell makes Windows® administrative automation faster. We also explore sev...
Get-Module查找由$Env:PSModulePath环境变量指定的路径中的可用模块。 有关PSModulePath的详细信息,请参阅about_Modules和about_Environment_Variables。 示例3:获取所有导出的文件 PowerShell Get-Module-ListAvailable-All 此命令获取所有可用模块的所有导出文件。