Global 全局范围适用于 Windows PowerShell 提示。 可以在 Windows PowerShell 提示处启动的所有脚本中查看在该 Windows PowerShell 提示处设置的变量。 在 Windows PowerShell 提示处创建的变量不存在于其他 Windows PowerShell 提示中或 Windows PowerShell 集成脚本环境 (ISE) 的实例中。 脚本 脚本范围适用于...
Don't modify the global $ErrorActionPreference variable unless absolutely necessary. If you change it in a local scope, it reverts to the previous value when you exit that scope. If you're using something like .NET directly from within your PowerShell function, you can't specify the Error...
about_Variable_Provider about_Function_Provider about_Alias_Provider 變數Cmdlet PowerShell 包含一組設計用來管理變數的 Cmdlet。 若要列出 Cmdlet,請輸入: PowerShell Get-Command-NounVariable 若要取得特定 Cmdlet 的說明,請輸入: PowerShell Get-Help<cmdlet-name> ...
function Get-SmallFiles { Param($Size) Get-ChildItem $HOME | Where-Object { $_.Length -lt $Size -and !$_.PSIsContainer } } In the function, you can use the $Size variable, which is the name defined for the parameter. To use this function, type the following command: PowerShell C...
symbols and spaces. For instance,$var="HELLO"stores the stringHELLOin the$varvariable. As another example, the previous code instance uses the variable$ito hold the value evaluated within theforloop. Variables can also have different scopes, such as global, local, script, private and numbered ...
Figure 5 Global Variable Defaults VariableDescriptionDefault $serviceNameA one-word name used for net start commands, and othersThe base name of the script $serviceDisplayNameA more descriptive name for the serviceA Sample PowerShell Service
function GetArgumentsFunction { ## We could use a param statement here, as well ## param($firstNamedArgument, [int] $secondNamedArgument = 0) ## Display the arguments by position "First positional function argument is: " + $args[0] ...
Set-Variable -scope Global -name SqlServerConnectionTimeout -Value 30 Set-Variable -scope Global -name SqlServerIncludeSystemObjects -Value $false Set-Variable -scope Global -name SqlServerMaximumTabCompletion -Value 1000 # Load the snapins, type data, format data ...
When you dot source the script and run it, the script creates theNew-Profilefunction and the$ProfileNamevariable in your session in your scope. After the script runs, you can use theNew-Profilefunction in your session, as shown in the following example. ...
Set-Variable -scope Global -name SqlServerConnectionTimeout -Value 30 Set-Variable -scope Global -name SqlServerIncludeSystemObjects -Value $false Set-Variable -scope Global -name SqlServerMaximumTabCompletion -Value 1000 # Load the snapins, type data, format data ...