如何让带参数的PowerShell脚本以管理员权限重启并保留参数

原来的提权代码用$PSCommandArgs传递参数时，没法正确处理带空格的字符串参数和开关参数的格式，导致提权后参数丢失。下面是修复后的代码，能完整保留所有参数：

# 检查是否以管理员身份运行
$currentPrincipal = New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())
if (-not $currentPrincipal.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
    # 构建要传递的参数数组
    $arguments = @()
    # 添加脚本路径
    $arguments += "-File `"$PSCommandPath`""
    # 处理开关参数（仅传递非默认值，因为默认值是$true）
    if (-not $SkipUpdate) { $arguments += "-SkipUpdate:`$false" }
    if (-not $UserReport) { $arguments += "-UserReport:`$false" }
    if (-not $ComputerReport) { $arguments += "-ComputerReport:`$false" }
    # 处理字符串参数（非空时传递，带空格自动用引号包裹）
    if ($SearchScope -ne "") { $arguments += "-SearchScope `"$SearchScope`"" }
    
    # 启动管理员权限的PowerShell进程
    Start-Process powershell.exe -ArgumentList $arguments -Verb RunAs
    exit
}

# 下面是你的脚本主体逻辑示例
Write-Host "已以管理员身份运行，当前参数："
Write-Host "SkipUpdate: $SkipUpdate"
Write-Host "UserReport: $UserReport"
Write-Host "ComputerReport: $ComputerReport"
Write-Host "SearchScope: $SearchScope"

关键说明 #

• 手动构建参数数组比直接拼接字符串更可靠，能避免转义错误
• 开关参数只传递非默认值（比如默认是$true，只有设为$false时才需要显式传递-参数名:$false）
• 字符串参数用双引号包裹，确保带空格的内容能被正确解析

完整脚本示例 #

把提权逻辑放在参数定义之后、脚本主体之前：

Param (
    [Parameter(Mandatory = $false)][switch]$SkipUpdate = $true,
    [Parameter(Mandatory = $false)][switch]$UserReport = $true,
    [Parameter(Mandatory = $false)][switch]$ComputerReport = $true,
    [Parameter(Mandatory = $false)][string]$SearchScope = ""
)

# 提权检查与重启逻辑
$currentPrincipal = New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())
if (-not $currentPrincipal.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
    $arguments = @()
    $arguments += "-File `"$PSCommandPath`""
    
    if (-not $SkipUpdate) { $arguments += "-SkipUpdate:`$false" }
    if (-not $UserReport) { $arguments += "-UserReport:`$false" }
    if (-not $ComputerReport) { $arguments += "-ComputerReport:`$false" }
    
    if ($SearchScope -ne "") { $arguments += "-SearchScope `"$SearchScope`"" }
    
    Start-Process powershell.exe -ArgumentList $arguments -Verb RunAs
    exit
}

# 脚本功能代码写在这里

内容的提问来源于stack exchange，提问作者Cool34