PowerShell实时网速监控

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<#
实时网速监控.ps1
#>
$adapter = Get-NetAdapter | Where-Object {
    $_.Status -eq 'Up' -and $_.Name -notlike 'vEthernet*'
} | Select-Object -First 1

if (-not $adapter) {
    Write-Host "未找到可用物理网卡"
    pause
    return
}
$name = $adapter.Name
$initStat = Get-NetAdapterStatistics -Name $name
$initRx = $initStat.ReceivedBytes
$initTx = $initStat.SentBytes

while ($true) {
    $a = Get-NetAdapterStatistics -Name $name
    Start-Sleep -Milliseconds 1000
    $b = Get-NetAdapterStatistics -Name $name

    #瞬时速率
    $downMB = ($b.ReceivedBytes - $a.ReceivedBytes) / 1MB
    $upMB = ($b.SentBytes - $a.SentBytes) / 1MB
    $downMbps = $downMB * 8
    $upMbps = $upMB * 8

    #累计流量
    $totalDownGB = ($b.ReceivedBytes - $initRx) / 1GB
    $totalUpGB = ($b.SentBytes - $initTx) / 1GB

    Clear-Host
    Write-Host "==== 实时网速监控 网卡：$name  (Ctrl+C退出) ====`n"
    Write-Host "瞬时下载：$($downMB.ToString('N2')) MB/s  ($($downMbps.ToString('N2')) Mbps)"
    Write-Host "瞬时上传：$($upMB.ToString('N2')) MB/s  ($($upMbps.ToString('N2')) Mbps)`n"
    Write-Host "累计下载：$($totalDownGB.ToString('N2')) GB"
    Write-Host "累计上传：$($totalUpGB.ToString('N2')) GB"
}

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