网络运营商会为每台联网的电脑分配公网IP，如何获取它们？？

话不多说直接上代码：

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Net;using System.Text;using System.Web;using GW.ThirdOpenAPI.AdminWeb.Infrastructure;namespace GW.ThirdOpenAPI.AdminWeb.Models.Common{    public class GetOutIpHelper    {        public static GetOutIpHelper Instance { get; } = new GetOutIpHelper();        private string url = "http://ip.taobao.com/service/getIpInfo.php?ip=myip";        public TaobaoData GetIPData()        {            string areaJson;            TaobaoData theData;            try            {                //创建请求                WebRequest request = WebRequest.Create(url);                //发送请求，获取相应s                WebResponse response = request.GetResponse();                using (Stream stream = response.GetResponseStream())  //获取响应的数据流                {                    using (StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("utf-8")))  //指定的数据流初始化为StreamReader 类                    {                        areaJson = reader.ReadToEnd();  //读取数据流中的所有字符                        theData = JsonHelper.Instance.Deserialize
    
     (areaJson);                        if (theData.code == "1")  //表示获取数据失败                        {                            return null;                        }                        return theData;                    }                }            }            catch            {                return null;            }        }    }    public class TaobaoData    {        public string code { get; set; }        public IPData data { get; set; }    }    public class IPData    {        /// 
     
        ///  外网IP        /// 
        public string ip { get; set; }        public string country { get; set; }        public string area { get; set; }        public string region { get; set; }        public string city { get; set; }        public string county { get; set; }        /// 
     
        ///  运营商        /// 
        public string isp { get; set; }        public string country_id { get; set; }        public string area_id { get; set; }        public string region_id { get; set; }        public string city_id { get; set; }        public string county_id { get; set; }        public string isp_id { get; set; }    }}