JSON数据：

{"code":0,"data":{"country":"\u4e2d\u56fd","country_id":"86","area":"\u534e\u4e1c","area_id":"300000","region":"\u6d59\u6c5f\u7701","region_id":"330000","city":"\u5b81\u6ce2\u5e02","city_id":"330200","county":"","county_id":"-1","isp":"\u7535\u4fe1","isp_id":"100017","ip":"125.111.226.165"}}

其中code为0表示成功，1表示失败。

我在这个地方搞不定：就是"county":"","，这里的value是  空   其实是所有value都有可能为 空

我目前 使用的代码：

class Program
    {
        staticvoid Main(string[] args)
        {
            var getIpInfoUrl ="http://ip.taobao.com/service/getIpInfo.php?ip={0}";
            getIpInfoUrl =string.Format(getIpInfoUrl, "125.111.226.165");

            var client =new WebClient();
            var result = client.DownloadString(getIpInfoUrl);

            var ipInfo = Newtonsoft.Json.JsonConvert.DeserializeObject<IpInfo>(result);
            foreach (var key in ipInfo.data.Keys)
                Console.WriteLine("{0}:{1}", key, ipInfo.data[key]);

            Console.Read();
        }
    }

    publicclass IpInfo
    {
        publicstring code;
        public Hashtable data;
    }

在  var ipInfo 这里会报错，就是"county":"",为空值 的关系，如何解决？求各种方法。