获取本地IP地址

要获取本地IP地址：

public static string GetLocalIPAddress(){    var host = Dns.GetHostEntry(Dns.GetHostName());    foreach (var ip in host.AddressList)    {        if (ip.AddressFamily == AddressFamily.InterNetwork)        { return ip.ToString();        }    }    throw new Exception("No network adapters with an IPv4 address in the system!");}

要检查您是否已连接：

System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable();