iptoinformation.cs

Csharp实例编程百例.rar

using System;
using System.Net;

class IpToInformation
{
	static void Main(string[] args)
	{
		int i=0;
		string IpString;
		Console.Write("Please enter a IP address:");
		IpString=Console.ReadLine();
		try
		{
			IPAddress myIP=IPAddress.Parse(IpString);
			IPHostEntry myHost=new IPHostEntry();
			myHost=Dns.GetHostByAddress(myIP);
			string HostName=myHost.HostName.ToString();
			Console.WriteLine("The host name is {0}",HostName);
			Console.WriteLine("The relative IP:");				
			for(i=0;i<myHost.AddressList.Length;i++)
			{
				Console.WriteLine(myHost.AddressList[i]);
			}
			if(myHost.Aliases.Length>0)
			{
				Console.WriteLine("The Aliases of the host:");
				for(i=0;i<myHost.Aliases.Length;i++)
				{
					Console.WriteLine(myHost.Aliases[i]);
				}
			}
			else
			{
				Console.WriteLine("The host have no alias.");
			}
		}
		catch(Exception ee)
		{
			Console.WriteLine(ee.Message);
		}
		
	}
}