C# Dictionary 字典嵌套 循环遍历

调用接口，获取到JSon数据后转Dictinoary，结果是字典嵌套字典，内层字典是object类型，根本没法foreach，最后在监视里面我发现内层的数据类型是这样的，所以我就想着把object强制转化成Dictionary 然后再进行遍历得到我想要的数据
以下是我的全部遍历Demo

 

 Dictionary<String, object> dt_acount = subaccount.JsonToDic();
                                    foreach (string key in dt_acount.Keys)
                                    {
                                        //object s = dt_acount["key"];
                                        if (key.Contains("SubAccount"))
                                        {
                                            Dictionary<String, object> acount = (Dictionary<String, object>)dt_acount["SubAccount"];
                                            foreach (string item in acount.Keys)
                                            {
                                                if (item.Contains("subAccountSid"))
                                                {
                                                    model.ytx_subaccount = acount["subAccountSid"].ToString();
                                                }
                                                else if (item.Contains("subToken"))
                                                {
                                                    model.ytx_subpass = acount["subToken"].ToString();
                                                }
                                                else if (item.Contains("voipAccount"))
                                                {
                                                    model.ytx_subvoipaccount = acount["voipAccount"].ToString();
                                                }
                                                else if (item.Contains("voipPwd"))
                                                {
                                                    model.ytx_subvoippass = acount["voipPwd"].ToString();
                                                }
                                            }
                                        }
                                    }