怎样得到我本地机器的所有IP？

[C#] 
     string s =""; 
     System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;
      for (int i = 0; i < addressList.Length; i ++)
      {
           s += addressList[i].ToString() + "\n"; 
     }
      textBox1.Text = s;

[VB.NET]

     Dim s As String = "" 
     Dim addressList As System.Net.IPAddress() = Dns.GetHostByName(Dns.GetHostName()).AddressList

     Dim i As Integer 
     For i = 0 To addressList.Length - 1 
          s += addressList(i).ToString() + ControlChars.Lf 
     Next i
     textBox1.Text = s