创建一个ps1文件设置删除python环境变量

创建一个名为.ps1的Windows PowerShell脚本，用于设置并删除Python环境变量，可以按照以下步骤操作：

# 定义函数：Set-EnvVariable
function Set-EnvVariable($name, $value) {
    $env:$name = $value
    Write-Host "Environment variable '$name' set to '$value'."
}

# 定义函数：Remove-EnvVariable
function Remove-EnvVariable($name) {
    if ($env:$name) {
        $env:$name = ""
        Write-Host "Environment variable '$name' removed."
    } else {
        Write-Host "Environment variable '$name' not found."
    }
}

# 示例：设置Python路径
$pythonPath = "C:\Python39\"
Set-EnvVariable "PYTHONPATH" $pythonPath

# 示例：删除Python路径
Remove-EnvVariable "PYTHONPATH"

# 使用说明
# 若要设置Python路径，只需运行 Set-EnvVariable 'PYTHONPATH' 'C:\Python39\' 即可。
# 若要删除Python路径，运行 Remove-EnvVariable 'PYTHONPATH'。