C# 获取本地IP地址

string hostName = Dns.GetHostName();   //获取本机名　　IPHostEntry localhost = Dns.GetHostByName(hostName);    //方法已过期，可以获取IPv4的地址　　//IPHostEntry localhost = Dns.GetHostEntry(hostName);   //获取IPv6地址　　IPAddress localaddr = localhost.AddressList[0];