diff --git a/README.md b/README.md
index 76fafaf..13b030c 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@
 - [ ] 邮件通知
 
 ## 使用
-py12306 需要运行 python 3.6 以上版本（其它版本暂未测试)
+py12306 需要运行在 python 3.6 以上版本（其它版本暂未测试)
 
 **1. 安装依赖**
 ```bash
@@ -57,6 +57,8 @@ python main.py -t -n
 python main.py
 ```
 
+## 下单成功图片
+![下单成功图片](./data/images/order_success.png)
 
 ## Thanks
 感谢大佬 [testerSunshine](https://github.com/testerSunshine/12306)，借鉴了部分实现
diff --git a/data/images/order_success.png b/data/images/order_success.png
new file mode 100644
index 0000000..91eba4b
Binary files /dev/null and b/data/images/order_success.png differ
diff --git a/py12306/helpers/app.py b/py12306/helpers/app.py
index 5651278..9b668a0 100644
--- a/py12306/helpers/app.py
+++ b/py12306/helpers/app.py
@@ -56,3 +56,24 @@ class App:
         if not cls.check_user_account_is_empty():
             CommonLog.add_quick_log(CommonLog.MESSAGE_CHECK_EMPTY_USER_ACCOUNT).flush(exit=True)
         if Const.IS_TEST_NOTIFICATION: cls.test_send_notifications()
+
+
+# Expand
+class Dict(dict):
+    def get(self, key, default=None, sep='.'):
+        keys = key.split(sep)
+        for i, key in enumerate(keys):
+            try:
+                value = self[key]
+                if len(keys[i + 1:]) and isinstance(value, Dict):
+                    return value.get(sep.join(keys[i + 1:]), default=default, sep=sep)
+                return value
+            except:
+                return self.dict_to_dict(default)
+
+    def __getitem__(self, k):
+        return self.dict_to_dict(super().__getitem__(k))
+
+    @staticmethod
+    def dict_to_dict(value):
+        return Dict(value) if isinstance(value, dict) else value
diff --git a/py12306/helpers/func.py b/py12306/helpers/func.py
index cbf5621..4bf406b 100644
--- a/py12306/helpers/func.py
+++ b/py12306/helpers/func.py
@@ -4,11 +4,11 @@ import threading
 import functools
 
 from time import sleep
+from types import MethodType
 
 from py12306 import config
 
 
-
 def singleton(cls):
     """
     将一个类作为单例
@@ -120,6 +120,13 @@ def sleep_forever_when_in_test():
     if Const.IS_TEST: sleep_forever()
 
 
+def expand_class(cls, key, value, keep_old=True):
+    if (keep_old):
+        setattr(cls, 'old_' + key, getattr(cls, key))
+    setattr(cls, key, MethodType(value, cls))
+    return cls
+
+
 @singleton
 class Const:
     IS_TEST = False
diff --git a/py12306/helpers/request.py b/py12306/helpers/request.py
index 762432a..f47f662 100644
--- a/py12306/helpers/request.py
+++ b/py12306/helpers/request.py
@@ -1,4 +1,6 @@
-from requests_html import HTMLSession
+from py12306.helpers.app import *
+from py12306.helpers.func import *
+from requests_html import HTMLSession, HTMLResponse
 
 
 class Request(HTMLSession):
@@ -18,3 +20,27 @@ class Request(HTMLSession):
             for chunk in response.iter_content(chunk_size=1024):
                 f.write(chunk)
         return response
+
+    @staticmethod
+    def _handle_response(response, **kwargs) -> HTMLResponse:
+        """
+        扩充 response
+        :param response:
+        :param kwargs:
+        :return:
+        """
+        response = HTMLSession._handle_response(response, **kwargs)
+        expand_class(response, 'json', Request.json)
+        return response
+
+    def json(self, default={}):
+        """
+        重写 json 方法，拦截错误
+        :return:
+        """
+        from py12306.helpers.app import Dict
+        try:
+            result = self.old_json()
+            return Dict(result)
+        except:
+            return Dict(default)
diff --git a/py12306/log/query_log.py b/py12306/log/query_log.py
index dd01a86..c7a086d 100644
--- a/py12306/log/query_log.py
+++ b/py12306/log/query_log.py
@@ -101,9 +101,9 @@ class QueryLog(BaseLog):
         self = cls()
         self.add_quick_log('查询余票请求失败')
         if code:
-            self.add_quick_log('状态码{}   '.format(code))
+            self.add_quick_log('状态码 {}   '.format(code))
         if reason:
-            self.add_quick_log('错误原因{}   '.format(reason))
+            self.add_quick_log('错误原因 {}   '.format(reason))
         self.flush(sep='\t')
         return self
 
diff --git a/py12306/order/order.py b/py12306/order/order.py
index d5a9408..cd5e42d 100644
--- a/py12306/order/order.py
+++ b/py12306/order/order.py
@@ -105,6 +105,8 @@ class Order:
             OrderLog.add_quick_log(OrderLog.MESSAGE_SUBMIT_ORDER_REQUEST_SUCCESS).flush()
             return True
         else:
+            if (str(result.get('messages', '')).find('未处理') >= 0):  # 未处理订单
+                stay_second(self.retry_time)
             OrderLog.add_quick_log(
                 OrderLog.MESSAGE_SUBMIT_ORDER_REQUEST_FAIL.format(result.get('messages', '-'))).flush()
         return False
@@ -134,9 +136,9 @@ class Order:
         }
         response = self.session.post(API_CHECK_ORDER_INFO, data)
         result = response.json()
-        if 'data' in result and result['data'].get('submitStatus'):  # 成功
+        if result.get('data.submitStatus'):  # 成功
             OrderLog.add_quick_log(OrderLog.MESSAGE_CHECK_ORDER_INFO_SUCCESS).flush()
-            if result['data'].get("ifShowPassCode") != 'N':
+            if result.get('data.ifShowPassCode') != 'N':
                 self.is_need_auth_code = True
             return True
         else:
@@ -181,7 +183,7 @@ class Order:
         }
         response = self.session.post(API_GET_QUEUE_COUNT, data)
         result = response.json()
-        if 'data' in result and ('countT' in result['data'] or 'ticket' in result['data']):  # 成功
+        if result.get('data.countT') or result.get('data.ticket'):  # 成功
             """
             "data": { 
                 "count": "66",
@@ -191,7 +193,7 @@ class Order:
                 "op_1": "true"
             }
             """
-            ticket = result['data']['ticket'].split(',')  # 暂不清楚具体作用
+            ticket = result.get('data.ticket').split(',')  # 暂不清楚具体作用
             ticket_number = sum(map(int, ticket))
             current_position = int(data.get('countT', 0))
             OrderLog.add_quick_log(
@@ -251,13 +253,13 @@ class Order:
                 "submitStatus": true
             }
             """
-            if result['data'].get('submitStatus'):  # 成功
+            if result.get('data.submitStatus'):  # 成功
                 OrderLog.add_quick_log(OrderLog.MESSAGE_CONFIRM_SINGLE_FOR_QUEUE_SUCCESS).flush()
                 return True
             else:
                 # 加入小黑屋 TODO
                 OrderLog.add_quick_log(
-                    OrderLog.MESSAGE_CONFIRM_SINGLE_FOR_QUEUE_ERROR.format(result['data'].get('errMsg', '-'))).flush()
+                    OrderLog.MESSAGE_CONFIRM_SINGLE_FOR_QUEUE_ERROR.format(result.get('data.errMsg', '-'))).flush()
         else:
             OrderLog.add_quick_log(OrderLog.MESSAGE_CONFIRM_SINGLE_FOR_QUEUE_FAIL.format(
                 result.get('messages', '-'))).flush()
diff --git a/py12306/query/job.py b/py12306/query/job.py
index b43dad3..f9bf06b 100644
--- a/py12306/query/job.py
+++ b/py12306/query/job.py
@@ -159,11 +159,7 @@ class Job:
         """
         if response.status_code != 200:
             QueryLog.print_query_error(response.reason, response.status_code)
-        try:
-            result_data = response.json().get('data', {})
-            result = result_data.get('result', [])
-        except:
-            pass  # TODO
+        result = response.json().get('data.result')
         return result if result else False
 
     def is_has_ticket(self, ticket_info):
diff --git a/py12306/query/query.py b/py12306/query/query.py
index 0cfda03..2febbc5 100644
--- a/py12306/query/query.py
+++ b/py12306/query/query.py
@@ -1,9 +1,9 @@
 import threading
 
-from requests_html import HTMLSession
 
 from py12306.helpers.app import app_available_check
 from py12306.helpers.func import *
+from py12306.helpers.request import Request
 from py12306.log.query_log import QueryLog
 from py12306.query.job import Job
 
@@ -21,7 +21,7 @@ class Query:
 
     def __init__(self):
         self.interval = init_interval_by_number(config.QUERY_INTERVAL)
-        self.session = HTMLSession()
+        self.session = Request()
 
     @classmethod
     def run(cls):
diff --git a/py12306/user/job.py b/py12306/user/job.py
index a9e52ff..31cc40c 100644
--- a/py12306/user/job.py
+++ b/py12306/user/job.py
@@ -178,10 +178,9 @@ class UserJob:
     def get_user_info(self):
         response = self.session.get(API_USER_INFO.get('url'))
         result = response.json()
-        user_data = result.get('data')
-        if user_data.get('userDTO') and user_data['userDTO'].get('loginUserDTO'):
-            user_data = user_data['userDTO']['loginUserDTO']
-            self.update_user_info({**user_data, **{'user_name': user_data['name']}})
+        user_data = result.get('data.userDTO.loginUserDTO')
+        if user_data:
+            self.update_user_info({**user_data, **{'user_name': user_data.get('name')}})
             return True
         return None
 
@@ -201,8 +200,8 @@ class UserJob:
         if self.passengers: return self.passengers
         response = self.session.post(API_USER_PASSENGERS)
         result = response.json()
-        if result.get('data') and result.get('data').get('normal_passengers'):
-            self.passengers = result.get('data').get('normal_passengers')
+        if result.get('data.normal_passengers'):
+            self.passengers = result.get('data.normal_passengers')
             return self.passengers
         else:
             UserLog.add_quick_log(