using System;
using System.net;
using System.net.Sockets;

public class multicast
{
  static void Main()
 {
  Console.WriteLine("请输入一个要解析的网址 :\n");
  String ipa =Console.ReadLine();
  try
  {
  IPAddress ipAddress = Dns.Resolve(ipa).AddressList[0];
  Console.WriteLine(ipAddress.ToString());
  }
  catch(SocketException e)
  {
  Console.WriteLine("发生错误,错误信息:"+e.Message +"\n错误源: "+e.Source);
  }
 }
}