/// <summary> /// 获取本机在局域网的IP地址 /// </summary> /// <returns></returns> private string GetLocalIPAddress() {     System.Net.IPAddress[] addressList = Dns.GetHostEntry(Dns.GetHostName()).AddressList;     string strNativeIP = "";     string strServerIP = "";     if (addressList.Length > 1)     { strNativeIP = addressList[0].ToString(); strServerIP = addressList[1].ToString();     }     else if(addressList.Length==1)     { strServerIP = addressList[0].ToString();     }     return strServerIP; }

/// <summary> /// 获取本机的上网IP /// </summary> /// <returns></returns> private string GetConnectNetAddress() {     string strUrl = "http://www.ip138.com/ip2city.asp"; //获得IP的网址     Uri uri = new Uri(strUrl);     WebRequest webreq = WebRequest.Create(uri);     Stream s = webreq.GetResponse().GetResponseStream();     StreamReader sr = new StreamReader(s, Encoding.Default);     string all = sr.ReadToEnd(); //读取网站返回的数据 格式：您的IP地址是：[x.x.x.x]     int i = all.IndexOf("[") + 1;     string tempip = all.Substring(i, 15);     string ip = tempip.Replace("]", "").Replace(" ", "").Replace("<", "");     return ip; }