ddns-go更新的频率高，不论是Linux还是Windows，手动更新都是比较麻烦的，用脚本自动执行来代替手动，是更好的解决方法。

我已经编写了一个Linux shell脚本，可以在Linux主机上半自动安装、更新ddns-go，效果还不错。

同理，在Windows上，也可以通过脚本实现自动更新ddns-go。

如果你的Windows系统也有根据IP动态更新DNS记录的需求，本文通过PowerShell+计划任务让ddns-go可以自动更新。

创建一个PowerShell脚本，位置在：C:\ddns\update-ddns-go.ps1

内容如下：

# =============================
#   ddns-go 自动更新脚本
#   PowerShell 5.1 兼容版
# =============================

# 设置变量
$AppName      = "ddns-go"
$InstallDir   = "C:\ddns"
$ExePath      = Join-Path $InstallDir "ddns-go.exe"
$ZipPath      = Join-Path $InstallDir "ddns-go.zip"
$LastRunFile  = Join-Path $InstallDir "last_run_week.txt"
$ApiUrl       = "https://api.github.com/repos/jeessy2/ddns-go/releases/latest"

# 确保目录存在
if (!(Test-Path $InstallDir)) {
    New-Item -ItemType Directory -Path $InstallDir | Out-Null
}

# -----------------------------
#  ISO 周数兼容函数（Win10 可用）
# -----------------------------
function Get-ISOWeek {
    param([datetime]$Date)

    $day = [int]$Date.DayOfWeek
    if ($day -eq 0) { $day = 7 }   # Sunday = 7

    # 移动到同一周的星期四
    $thursday = $Date.AddDays(4 - $day)

    # 该年份的第一个星期四
    $firstThursday = Get-Date -Year $thursday.Year -Month 1 -Day 4

    return [int](([math]::Floor(($thursday - $firstThursday).Days / 7)) + 1)
}

# -----------------------------
# 判断本周是否执行过更新
# -----------------------------
$Today = Get-Date
$WeekNumber = Get-ISOWeek -Date $Today
$YearWeek = "{0}-W{1:00}" -f $Today.Year, $WeekNumber

if (Test-Path $LastRunFile) {
    $LastWeek = Get-Content $LastRunFile -ErrorAction SilentlyContinue
    if ($LastWeek -eq $YearWeek) {
        exit
    }
}

# -----------------------------
#   Windows Toast 通知函数
# -----------------------------
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

function Show-Toast {
    param(
        [string]$Title,
        [string]$Message
    )

    $notify = New-Object System.Windows.Forms.NotifyIcon
    $notify.Icon = [System.Drawing.SystemIcons]::Information
    $notify.Visible = $true
    $notify.ShowBalloonTip(5000, $Title, $Message, [System.Windows.Forms.ToolTipIcon]::None)
}

# -----------------------------
#   获取最新版本
# -----------------------------
try {
    $Response = Invoke-RestMethod -Uri $ApiUrl -UseBasicParsing -ErrorAction Stop
    $LatestVersion = $Response.tag_name.TrimStart("v")
} catch {
    Show-Toast -Title "$AppName 更新失败" -Message "无法获取最新版本"
    exit
}

# -----------------------------
#   如果没有安装，视为版本 0
# -----------------------------
$CurrentVersion = ""
if (Test-Path $ExePath) {
    try {
        $CurrentVersion = (& $ExePath -v)
    } catch {
        $CurrentVersion = ""
    }
}

# -----------------------------
#   判断是否需要更新
# -----------------------------
if ($CurrentVersion -eq $LatestVersion) {
    Set-Content $LastRunFile $YearWeek
    Show-Toast -Title "$AppName 已是最新" -Message "当前版本：$LatestVersion"
    exit
}

# -----------------------------
#   下载最新 zip
# -----------------------------
$Asset = $Response.assets | Where-Object { $_.name -match "windows_x86_64.zip" }
$DownloadUrl = $Asset.browser_download_url

try {
    Invoke-WebRequest -Uri $DownloadUrl -OutFile $ZipPath -UseBasicParsing -ErrorAction Stop
} catch {
    Show-Toast -Title "$AppName 更新失败" -Message "下载失败"
    exit
}

# -----------------------------
#   解压并替换程序
# -----------------------------
try {
    Expand-Archive -Path $ZipPath -DestinationPath $InstallDir -Force
    Remove-Item $ZipPath -Force
} catch {
    Show-Toast -Title "$AppName 更新失败" -Message "解压失败"
    exit
}

# -----------------------------
#   记录已更新的周次
# -----------------------------
Set-Content $LastRunFile $YearWeek

# -----------------------------
#   发送成功通知
# -----------------------------
Show-Toast -Title "$AppName 更新成功" -Message "已更新至版本 $LatestVersion"

管理员运行PowerShell，输入以下命令将脚本加入开机启动：

$Action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-ExecutionPolicy Bypass -File C:\ddns\update-ddns-go.ps1"
$Trigger = New-ScheduledTaskTrigger -AtStartup
Register-ScheduledTask -TaskName "Update-ddns-go-weekly" -Action $Action -Trigger $Trigger -RunLevel Highest

效果：

• 每次开机自动检测最新版本、下载、更新 ddns-go
• 每周最多执行一次，本周已执行过开机就跳过
• 无论成功或失败，都使用 Windows Toast 通知
• 完全兼容 Win10
• 手动双击执行也可以正常运行

#ddns-go #powershell #windows