string jsonParam = “{\“template_id\”: \“1\”,” +

                   “\“ext_json\”: \”{\“extAppid\”:\"\",\“ext\”:{\"\"},\“window\”:{}}\"," +

                   “\“user_version\”: \“V1.0\”,” +

                   “\“user_desc\”:\“拼车之家分支小程序” + DateTime.Now.ToString(“yyyy-MM-dd HH:mm”) + “\”}”;