首先，引用System.Management；然后在代码中Imports System.Management
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim Wmi As New System.Management.ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration")
        TextBox1.Text = ""
        For Each WmiObj As ManagementObject In Wmi.Get
            If CBool(WmiObj("IPEnabled")) Then
                TextBox1.Text += "IP(" & WmiObj("IPAddress")(0) & ")|MAC(" & WmiObj("MACAddress") & ")" & vbCrLf
            End If
        Next
    End Sub