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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net;using System.IO;namespace ConsoleApplication1{    class Program    {        static void Main(string[] args)        {                        StreamReader sr = null;            Stream s = null;            string strUrl = "http://iframe.ip138.com/ic.asp"; //获得IP的网址了             try            {                Uri uri = new Uri(strUrl);                WebRequest wr = WebRequest.Create(uri);                s = wr.GetResponse().GetResponseStream();                sr = new StreamReader(s, Encoding.Default);                string all = sr.ReadToEnd(); //读取网站的数据                 int i = all.IndexOf("[") + 1;                string tempip = all.Substring(i, 15);                string ip = tempip.Replace("]", "").Replace(" ", "")+"\r\n";//找出ip                 Console.WriteLine(ip);                Console.ReadKey();            }            catch (Exception ex)            {                Console.WriteLine(ex.Message);                Console.ReadKey();            }            finally            {                if(sr!=null)                sr.Close();                if (s != null)                s.Close();            }                                               }    }}

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