For more information, see the documentation for the ftype command. For PowerShell to see a file extension as executable in the current session, you must add the extension to the $env:PATHEXT environment variable. See also - about_Aliases - about_Functions - about_Path_Syntax - Alias-Provider...
Get-Variable [[-Name] <String[]>] [-ValueOnly] [-Include <String[]>] [-Exclude <String[]>] [-Scope <String>] [<CommonParameters>]说明Get-Variable cmdlet 获取当前控制台中的 PowerShell 变量。可以通过指定 ValueOnly 参数来仅检索变量的值,并且可以按名称筛选返回的变量。示例...
$Count=1$refOfCount=Get-VariableCountStart-ThreadJob{ ($Using:refOfCount).Value =2} |Receive-Job-Wait-AutoRemoveJob$Count Output 2 备注 这不是线程安全的操作。 如果尝试同时更改多个线程的值,可能会导致数据损坏。 应使用线程安全的数据类型或同步基元来保护共享数据。 有关详细信息,请参阅线程安全集合...
包含產生此事件的物件。 此變數只會在事件註冊命令的 Action 區塊內填入。 The value of this variable can also be found in the Sender property of thePSEventArgsobject thatGet-Eventreturns. $ShellId 包含當前 shell 程式的識別碼。 $StackTrace
A data member of an object that belongs to the object's type rather than to that particular instance of the type is called a static variable. See §4.2.3, §4.2.4.1, and §4.3.8 for some examples. PowerShell provides no way to create new types that contain static variables; however,...
Windows PowerShell will use the String data type to store the value. In .NET Framework terms, that's the System.String class, which has perhaps the most built-in functionality of any variable type. If, say, I want to see an all-lowercase version of the value in $var, I can do this...
The automatic variable$_or$PSItemcontains the current object in the pipeline for use in theprocessblock. The$inputautomatic variable contains an enumerator that's only available to functions and script blocks. For more information, seeabout_Automatic_Variables. ...
New-Variable Cmdlet Creates a new variable. Set-Variable Cmdlet Sets the value of a variable. Creates the variable if one with the requested name does not exist. Remove-Variable Cmdlet Deletes a variable and its value. Clear-Variable Cmdlet Deletes the value of a variable. ...
Variable names have no interaction between them and the underlying operating system. PowerShell treats them case-insensitively. Module names are case-insensitive (with exceptions) Thenameof the module is purely a PowerShell concept and treated case-insensitively. However, there is a strong mapping...
I run the script, and the script breaks before the value “localhost” is assigned to the$cnvariable. I then check the value of the$cnvariable; nothing is displayed because the variable has not been created. Next, I use theLcommand to see the code, and I see the script is on the fi...