1. 安装ActiveDirectory 模块

在运行PowerShell的计算机上，需要安装ActiveDirectory模块，它可以使PowerShell与Active Directory进行交互和操作。可以通过使用以下命令安装此模块：

Install-WindowsFeature RSAT-AD-PowerShell

2. 编写脚本

创建名为“Extend-ADAccountExpiry.ps1”的新文件，并将以下代码copy到该文件中。

# Import ActiveDirectory module
Import-Module ActiveDirectory

# Read account name from user
$AccountName = Read-Host "Enter account name"

# Ask user to select method of expiry extension
$Choice = Read-Host "Select expiry extension period: 1 for 6 months, 2 for specific date"

# If user selects 6 months, add 6 months to current expiry date and update in Active Directory
if($Choice -eq 1) {
    $User = Get-ADUser $AccountName -Properties AccountExpirationDate
    $NewExpiryDate = $User.AccountExpirationDate.AddDays(180)
    $User | Set-ADUser -AccountExpirationDate $NewExpiryDate
    Write-Host "Expiry date of $AccountName has been extended by 6 months to $NewExpiryDate"
}

# If user selects specific date, read the date from user and update expiry date in Active Directory
if($Choice -eq 2) {
    $ExpiryDate = Read-Host "Enter expiry date (format: MM/DD/YYYY)"
    $User = Get-ADUser $AccountName -Properties AccountExpirationDate
    $User | Set-ADUser -AccountExpirationDate (Get-Date $ExpiryDate)
    Write-Host "Expiry date of $AccountName has been updated to $ExpiryDate"
}

3. 运行脚本

在Powershell中，移动到脚本所在的目录，并执行以下命令来运行脚本：

.\Extend-