Output复制 Bar 可以通过为变量的值指定空字符串,使用SetEnvironmentVariable()方法删除环境变量。 例如,若要删除环境变量,请执行以下操作Foo: PowerShell复制 [Environment]::SetEnvironmentVariable('Foo','') [Environment]::GetEnvironmentVariable('Foo') ...
正如commenter所建议的,我还向SetEnvironmentVariable添加了“machine”参数,以便在PowerShell会话结束时变量值将保持不变。注意:运行脚本时需要管理员权限。 # Redirect WSL output to temp file, which keeps the UTF-16 encoding intact $tempFilePath = (New-TemporaryFile).FullName Start-Process -FilePath wsl ...
Clear-Variable 刪除變數的值。 Get-Variable 取得目前控制台中的變數。 New-Variable 建立新變數。 Remove-Variable 刪除變數及其值。 Set-Variable 變更變數的值。 另請參閱 about_Automatic_Variables about_Environment_Variables about_Preference_Variables about_Profiles about_Quoting_Rules about_Remote_Variables ...
# check if ANDROID_NDK environment variable is not set if(-not$env:ANDROID_NDK) { $env:ANDROID_NDK="D:/soft/android-ndk/r21e" } $TOOLCHAIN="${env:ANDROID_NDK}/build/cmake/android.toolchain.cmake" Write-Host"ANDROID_NDK is:$env:ANDROID_NDK" Write-Host"TOOLCHAIN is:$TOOLCHAIN" $BUIL...
Path` environment variable, type the script's path and file name. If you enter the exact name of a help article, `Get-Help` displays the article contents. If you enter a word or word pattern that appears in several help article titles, `Get-Help` displays a list of the matching ...
$Count=1$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...
Root CurrentLocation --- --- --- --- A FileSystem A:\ Alias Alias C FileSystem C:\ ...And Settings\me cert Certificate \ D FileSystem D:\ Env Environment Function Function HKCU Registry HKEY_CURRENT_USER HKLM Registry HKEY_LOCAL_MACHINE Variable Variable 虽然显示内容中的驱动器与系统上...
PowerShell. For example, suppose all you need is a process-level environment variable (that is, an environment variable that is only visible to, and lasts only as long as, your current PowerShell session). In that case you can create the new environment variable using code similar to this...
Output 复制 Test-WriteError: Line | 7 | Test-WriteError | ~~~ | Bad The $? variable is: False Now the $? variable is: True 出于后者的目的,应改用 $PSCmdlet.WriteError()。 对于本机命令(可执行文件),当 $? 为0 时, 设置为 $LASTEXITCODE,当 为任何其他值时设置为 $LASTEXITCODE...
this script file will run. That means you can use the profile to set up your Windows PowerShell environment. Typically that would be custom console settings and aliases, but use your imagination and you can come up with other things you’d like to customize in PowerShell before you start ...