写的不好，请大家见谅。

1.Json 格式
{"packages":[{“type”:”aaa”}],"zone_packages":[{"tickettype":[{"ticket_type":"111","ticket_count":"1","trans_num":null,"refund_num":null}],"zone_group":"武汉园博会","ticket_key":"1753626040"}],"order_nbr":"30000000012015090800006524","order_amount":"","order_nbr_original":"150908050106992","order_contacts":"仲秀萍","contacts_tel":"15821311320","order_remark":"","use_date":"20150909","order_status":"8"}

2.定义扩展方法
/// <summary>拆分字符串成为名值字典</summary>
        /// <param name="str">要分割字符串的</param>
        /// <param name="nameValueSeparator">键值对的分隔符</param>
        /// <param name="separators">分割字符</param>
        /// <returns>键值对字典</returns>
        public static IDictionary<String, String> SplitAsDictionary(this String str, String nameValueSeparator = "=", params String[] separators)
        {
            var dic = new Dictionary<String, String>();
            if (String.IsNullOrWhiteSpace(str)) return dic;

if (String.IsNullOrEmpty(nameValueSeparator)) nameValueSeparator = "=";
            if (separators == null || separators.Length < 1) separators = new String[] { ",", ";" };

String[] ss = str.Split(separators, StringSplitOptions.RemoveEmptyEntries);
            if (ss == null || ss.Length < 1) return null;

foreach (var item in ss)
            {
                Int32 p = item.IndexOf(nameValueSeparator);
                // 在前后都不行
                if (p <= 0 || p >= item.Length - 1) continue;

String key = item.Substring(0, p).Trim();
                dic[key] = item.Substring(p + nameValueSeparator.Length).Trim();
            }

return dic;
        }

3.Json格式解析
public static object ZoneTicket(string json)
        {
            var doc = json;
            //json格式解析
            var dicList = doc.Split(new String[] { "\"zone_packages\":[", "\"packages\":[", "\"tickettype\":[", "}]" }, StringSplitOptions.None)
                //对每个大类处理，先过滤，再分割为子类
                             .Select(n => n.Replace("\"", "").Split(new String[] { "},{" }, StringSplitOptions.None)
                                 .Select(k => k.Replace("{", "").Replace("}", "")//对子类过滤
                                      .SplitAsDictionary(":", ","))//提取子类的键值对
                                      .ToArray()).ToList();//列表 
            return dicList;

}