diff --git a/ck_smzdm_app.py b/ck_smzdm_app.py
index 60df3529..4e5fd83b 100644
--- a/ck_smzdm_app.py
+++ b/ck_smzdm_app.py
@@ -5,10 +5,11 @@
 """
 
 
-import requests
+import hashlib
 import json
 import time
-import hashlib
+
+import requests
 
 from notify_mtr import send
 from utils import get_data
@@ -22,23 +23,30 @@ def __init__(self, check_items):
     def sign(cookie):
         try:
             ts = int(round(time.time() * 1000))
-            url = 'https://user-api.smzdm.com/robot/token'
+            url = "https://user-api.smzdm.com/robot/token"
             headers = {
-                'Host': 'user-api.smzdm.com',
-                'Content-Type': 'application/x-www-form-urlencoded',
-                'Cookie': f'{cookie}',
-                'User-Agent': 'smzdm_android_V10.4.1 rv:841 (22021211RC;Android12;zh)smzdmapp',
+                "Host": "user-api.smzdm.com",
+                "Content-Type": "application/x-www-form-urlencoded",
+                "Cookie": f"{cookie}",
+                "User-Agent": "smzdm_android_V10.4.1 rv:841 (22021211RC;Android12;zh)smzdmapp",
             }
             data = {
                 "f": "android",
                 "v": "10.4.1",
                 "weixin": 1,
                 "time": ts,
-                "sign": hashlib.md5(bytes(f'f=android&time={ts}&v=10.4.1&weixin=1&key=apr1$AwP!wRRT$gJ/q.X24poeBInlUJC', encoding='utf-8')).hexdigest().upper()
+                "sign": hashlib.md5(
+                    bytes(
+                        f"f=android&time={ts}&v=10.4.1&weixin=1&key=apr1$AwP!wRRT$gJ/q.X24poeBInlUJC",
+                        encoding="utf-8",
+                    )
+                )
+                .hexdigest()
+                .upper(),
             }
             html = requests.post(url=url, headers=headers, data=data)
             res = html.json()
-            token = res['data']['token']
+            token = res["data"]["token"]
 
             Timestamp = int(round(time.time() * 1000))
             data = {
@@ -48,24 +56,31 @@ def sign(cookie):
                 "weixin": 1,
                 "time": Timestamp,
                 "token": token,
-                "sign": hashlib.md5(bytes(f'f=android&sk=ierkM0OZZbsuBKLoAgQ6OJneLMXBQXmzX+LXkNTuKch8Ui2jGlahuFyWIzBiDq/L&time={Timestamp}&token={token}&v=10.4.1&weixin=1&key=apr1$AwP!wRRT$gJ/q.X24poeBInlUJC', encoding='utf-8')).hexdigest().upper()
+                "sign": hashlib.md5(
+                    bytes(
+                        f"f=android&sk=ierkM0OZZbsuBKLoAgQ6OJneLMXBQXmzX+LXkNTuKch8Ui2jGlahuFyWIzBiDq/L&time={Timestamp}&token={token}&v=10.4.1&weixin=1&key=apr1$AwP!wRRT$gJ/q.X24poeBInlUJC",
+                        encoding="utf-8",
+                    )
+                )
+                .hexdigest()
+                .upper(),
             }
-            url = 'https://user-api.smzdm.com/checkin'
-            url2 = 'https://user-api.smzdm.com/checkin/all_reward'
+            url = "https://user-api.smzdm.com/checkin"
+            url2 = "https://user-api.smzdm.com/checkin/all_reward"
             headers = {
-                'Host': 'user-api.smzdm.com',
-                'Content-Type': 'application/x-www-form-urlencoded',
-                'Cookie': f'{cookie}',
-                'User-Agent': 'smzdm_android_V10.4.1 rv:841 (22021211RC;Android12;zh)smzdmapp',
+                "Host": "user-api.smzdm.com",
+                "Content-Type": "application/x-www-form-urlencoded",
+                "Cookie": f"{cookie}",
+                "User-Agent": "smzdm_android_V10.4.1 rv:841 (22021211RC;Android12;zh)smzdmapp",
             }
             html = requests.post(url=url, headers=headers, data=data)
             html2 = requests.post(url=url2, headers=headers, data=data)
             res = json.loads(html.text)
             res2 = json.loads(html2.text)
-            if res2['error_code'] == '0':
+            if res2["error_code"] == "0":
                 msg = res2["title"] + res2["sub_title"]
             else:
-                msg = res['error_msg']
+                msg = res["error_msg"]
         except Exception as e:
             msg = f"签到状态: 签到失败\n错误信息: {e}，请重新获取 cookie"
         return msg