using System.Net; IPAddress ad1=IPAddress.Parse("192.168.1.1"); //ip为192.168.1.1的地址 IPAddress ad2=IPAddress.Loopback; //127.0.0.1 IPAddress ad3=IPAddress.Broadcast; //255.255.255.255 IPAddress ad4=IPAddress.None; //255.255.255.255 IPAddress ad5=IPAddress.Any; //0.0.0.0 IPAddress local=Dns.GetHostByName(Dns.GetHostName()).AddressList[0];//本机ip