If (Lcase(Right(Wscript.FullName,11)) = "wscript.exe") Then
   CreateObject("WScript.Shell").Run("%Comspec% /C  ""Title 适配器流量监测  &&Cscript.exe //NoLogo  """ & Wscript.ScriptFullName & """"""), 3
   Wscript.Quit
End If

ConnectionID = "本地连接"

Set ObjectNetwork = CreateObject("Wscript.Network")
strComputer = ObjectNetwork.ComputerName
'获取计算机名,必须用字符串,不能用.代替

Set ObjectWSH = Wscript.createObject("Wscript.shell")
Set ObjWMIService = GetObject("winmgmts:" & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")

Wscript.Echo ConnectionID & " 信息"
Set NetCards = ObjWMIService.ExecQuery("Select * from Win32_NetworkAdapter WHERE NetConnectionID = '" & ConnectionID & "'")
If NetCards.Count<>0 Then
        For Each NetCard In NetCards
                WScript.Echo "适配器名: " & NetCard.Name & vbCrLf & "MAC 地址: " & NetCard.MACAddress
                NetCardName = NetCard.Name
        Next
Else
        Wscript.Echo "网卡不存在."
        WScript.Quit(0)
End If
'获取用于上网的网卡信息

Dim NetAdptName
Dim TargetNetAdpt
TargetNetAdpt = SelNetAdpt

'监视网络
'获取开始时接收的流量（字节）
Dim BeginFlow
BeginFlow = CurrentFlow
Wscript.Echo "起始流量: " & CheckSize(BeginFlow)
For i=1 to 1000
	'定义时间范围
                WScript.Sleep 3*1000
                TempFlow = CurrentFlow
                Wscript.Echo "使用流量: " & CheckSize(TempFlow - BeginFlow)

Next
WScript.Echo "Exit ..."
WScript.Quit(0)


Function SelNetAdpt
        Set ObjectFlows = objWMIService.InstancesOf("Win32_PerfRawData_Tcpip_NetworkInterface")
        k = ObjectFlows.Count
        If k < 1 Then Exit Function

        Redim NetAdptName(k)
        NetAdptName(0) = k
        k = 0
        For Each ObjectFlow In ObjectFlows
                k= k + 1
                NetAdptName(k) = ObjectFlow.Name
        Next
       Wscript.Echo ""
        Do
        	For i = 1 To k
               	Wscript.Echo i,NetAdptName(i)
               Next
               Wscript.Echo ""
               Wscript.Echo "请选择要监测的适配器:"
        	TempNetAdpt = Int(WScript.StdIn.ReadLine())
        	If (TempNetAdpt < 1) Or (TempNetAdpt > NetAdptName(0)) Then 
                     Wscript.Echo "选择有误,请重新选择。"
              Else
                      Exit Do
               End If
         Loop
         SelNetAdpt = TempNetAdpt
End Function


Function CurrentFlow
        'Set ObjectFlows = objWMIService.InstancesOf("Win32_PerfRawData_Tcpip_NetworkInterface")
        Set ObjectFlows = objWMIService.ExecQuery("Select * from Win32_PerfRawData_Tcpip_NetworkInterface Where Name = '"& NetAdptName(TargetNetAdpt) &"'")
        Dim CurrentFlowInt
        CurrentFlowInt = 0
        For Each ObjectFlow In ObjectFlows
                CurrentFlowInt =CurrentFlowInt + ObjectFlow.BytesReceivedPersec
        Next
       CurrentFlow  = CurrentFlowInt
End Function

Function CheckSize(ByVal SZ)
   On Error Resume Next
   If SZ => 1073741824 Then
       SZ = FormatNumber(SZ/1073741824) & "GB"
   ElseIf SZ => 1048576 Then
       SZ = FormatNumber(SZ/1048576) & "MB"
   ElseIf SZ => 1024 Then
       SZ = FormatNumber(SZ/1024) & "KB"
   Else
       SZ = SZ & "字节"
   End If
   CheckSize=SZ
   On Error Goto 0
End Function
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