获取本机IP

public string GetLocalIP()
        {
            //获取说有网卡信息
            NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
            foreach (NetworkInterface adapter in nics)
            {
                //判断是否为以太网卡
                //Wireless80211         无线网卡    Ppp     宽带连接
                //Ethernet              以太网卡   
                //这里篇幅有限贴几个常用的，其他的返回值大家就自己百度吧！

                if (adapter.NetworkInterfaceType == NetworkInterfaceType.Ethernet)
                {
                    //获取以太网卡网络接口信息
                    IPInterfaceProperties ip = adapter.GetIPProperties();
                    //获取单播地址集
                    UnicastIPAddressInformationCollection ipCollection = ip.UnicastAddresses;
                    foreach (UnicastIPAddressInformation ipadd in ipCollection)
                    {
                        //InterNetwork    IPV4地址      InterNetworkV6        IPV6地址
                        //Max            MAX 位址
                        if (ipadd.Address.AddressFamily == AddressFamily.InterNetwork)
                        //判断是否为ipv4
                        {

                            strLocalIP = ipadd.Address.ToString();//获取ip
                            return strLocalIP;//获取ip

                        }
                    }
                }
            }
            return null;
        }

引用：http://bbs.csdn.net/topics/391928616

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