$Env:<variable-name> = "<new-value>" 例如,若要建立 Foo 環境變數: powershell 複製 $Env:Foo = 'An example' 因為環境變數一律是字串,因此您可以使用它們,就像包含字元串的任何其他變數一樣。 例如: powershell 複製 "The 'Foo' environment variable is set
about_Tab_Expansion about_Telemetry about_Thread_Jobs about_Throw about_Trap about_Try_Catch_Finally about_Types.ps1xml about_Type_Accelerators about_Type_Operators about_Updatable_Help about_Update_Notifications about_Using about_Variables about_Variable_Provider about_While about_Wildcards about_Windows...
Hit Variable breakpoint on'C:\ps-test\test.ps1:$scriptName'(Write access) test.ps1:11$scriptName=$MyInvocation.PSCommandPath DBG> 顯示變數的$scriptName目前值,也就是$null。 PowerShell複製
路径是项名称、项所在的容器和子容器以及用于访问容器的 PowerShell 驱动器的组合。 在PowerShell 中,路径名可以是两种类型之一:完全限定和相对。 完全限定的路径由构成路径的所有元素组成。 以下语法显示完全限定的路径名称中的元素: Syntax复制 [<provider>::]<drive>:[\<container>[\<subcontainer>...]]\<item...
Fix tooltip for variable expansion and include desc (#25112) (Thanks @jborean93!) Add type inference for functions without OutputType attribute and anonymous functions (#21127) (Thanks @MartinGC94!) Add completion for variables assigned by command redirection (#25104) (Thanks @MartinGC94!) Han...
The Windows PowerShell runtime is the execution engine that provides the operating environment for Windows PowerShell. The data retrieved and written by the runtime is in the form of data objects that are compatible with the .NET Framework. For more information about how Windows PowerShell handle...
Other than%variable%environment-variable references, you can't embed any other dynamic elements in the command. Escaping a%character as%%, the way you can do inside batch files, isn't supported.%<name>%tokens are invariably expanded. If<name>doesn't refer to a defined environment variable th...
As you probably know, out of the box Windows PowerShell includes some basictab expansion. (OK, “out of the box” if PowerShell actuallycamein a box.) For example, typeget-cin the PowerShell console and then press the TAB key; PowerShell will replace get-c with Get-ChildItem. Press ...
To define an expanding string (one in which variable and escape expansion occur), enclose it in double quotes: $myString = "hello `t $ENV:SystemRoot" $myString gets a value similar to hello C:\WINDOWS. To include a single quote in a single-quoted string or a double quote in a double...
Fix tooltip for variable expansion and include desc (#25112) (Thanks @jborean93!) Add type inference for functions without OutputType attribute and anonymous functions (#21127) (Thanks @MartinGC94!) Add completion for variables assigned by command redirection (#25104) (Thanks @MartinGC94!) Han...