diff --git a/BiliDriveEx/__main__.py b/BiliDriveEx/__main__.py
index 46ad92baa6f1d78a7375e62156e2638c7e5d40f4..f2fa4659a7036e92933c16bb1f429cf6a72066cc 100644
--- a/BiliDriveEx/__main__.py
+++ b/BiliDriveEx/__main__.py
@@ -312,7 +312,8 @@ def main():
             try:
                 args.func(args)
                 break
-            except AttributeError:
+            except AttributeError as ex:
+                traceback.print_exc(file=sys.stdout)
                 shell = True
                 subparsers.add_parser("help", help="show this help message").set_defaults(func=lambda _: parser.parse_args(["--help"]).func())
                 subparsers.add_parser("version", help="show program's version number").set_defaults(func=lambda _: parser.parse_args(["--version"]).func())
diff --git a/BiliDriveEx/bilibili.py b/BiliDriveEx/bilibili.py
index bb39e5b7df12250bfa2b13400ed0318265f79da6..ead90ec27d2edfc3f1667ecd4226ed70e7fc1a43 100644
--- a/BiliDriveEx/bilibili.py
+++ b/BiliDriveEx/bilibili.py
@@ -14,6 +14,7 @@ from BiliDriveEx.util import *
 class Bilibili:
     app_key = "1d8b6e7d45233436"
 
+    default_hdrs = {'User-Agent': "Mozilla/5.0 BiliDroid/5.51.1 (bbcallen@gmail.com)"}
     
     default_url = lambda self, sha1: f"http://i0.hdslb.com/bfs/album/{sha1}.png"
     meta_string = lambda self, url: ("bdex://" + re.findall(r"[a-fA-F0-9]{40}", url)[0]) if re.match(r"^http(s?)://i0.hdslb.com/bfs/album/[a-fA-F0-9]{40}.png$", url) else url
@@ -22,10 +23,9 @@ class Bilibili:
     get_uid = lambda self: self.get_cookies().get("DedeUserID", "")
     
     def __init__(self):
+        self.cookie = {}
         self._session = requests.Session()
         self._session.headers.update({'User-Agent': "Mozilla/5.0 BiliDroid/5.51.1 (bbcallen@gmail.com)"})
-        self.username = ""
-        self.password = ""
         self.info = {
             'ban': False,
             'coins': 0,
@@ -40,20 +40,18 @@ class Bilibili:
 
 
 
-    def _requests(self, method, url, decode_level=2, retry=0, timeout=10, **kwargs):
-        if method in ["get", "post"]:
-            for _ in range(retry + 1):
-                try:
-                    response = getattr(self._session, method)(url, timeout=timeout, **kwargs)
-                    return response.json() if decode_level == 2 else response.content if decode_level == 1 else response
-                except:
-                    pass
-        return None
+    def _requests(self, method, url, decode_level=0, retry=0, timeout=10, **kwargs):
+        for _ in range(retry + 1):
+            try:
+                response = getattr(self._session, method.lower())(url, timeout=timeout, **kwargs)
+                return response.json() if decode_level == 2 else response.content if decode_level == 1 else response
+            except:
+                pass
 
     def _solve_captcha(self, image):
         url = "https://bili.dev:2233/captcha"
         payload = {'image': base64.b64encode(image).decode("utf-8")}
-        response = self._requests("post", url, json=payload)
+        response = self._requests("post", url, json=payload).json()
         return response['message'] if response and response.get("code") == 0 else None
 
     @staticmethod
@@ -70,7 +68,7 @@ class Bilibili:
             'appkey': Bilibili.app_key,
             'sign': self.calc_sign(f"appkey={Bilibili.app_key}"),
         }
-        res = request_retry("post", url, data=payload, retry=999999).json()
+        res = self._requests("post", url, data=payload, retry=999999).json()
         if res and res['code'] == 0:
             return {
                 'key_hash': res['data']['hash'],
@@ -79,6 +77,7 @@ class Bilibili:
         
     def login_once(self, username, password, captcha=None):
         key = self.get_key()
+        print('key: ', key)
         key_hash, pub_key = key['key_hash'], key['pub_key']
         username = parse.quote_plus(username)
         password = parse.quote_plus(base64.b64encode(rsa.encrypt(f'{key_hash}{password}'.encode(), pub_key)))
@@ -88,34 +87,38 @@ class Bilibili:
         param += f"&password={password}&username={username}"
         payload = f"{param}&sign={self.calc_sign(param)}"
         headers = {'Content-type': "application/x-www-form-urlencoded"}
-        res = self._requests("post", url, data=payload, headers=headers)
+        res = self._requests("POST", url, data=payload, headers=headers).json()
+        return res
+        
+    def get_captcha(self):
+        url = f"https://passport.bilibili.com/captcha"
+        headers = {'Host': "passport.bilibili.com"}
+        res = self._requests('GET', url, headers=headers).content
         return res
         
     # 登录
     def login(self, username, password):
-        self.username = username
-        self.password = password
 
         while True:
             response = self.login_once(username, password)
+            print(response)
             while True:
                 if response and response.get("code") is not None:
                     if response['code'] == -105:
-                        url = f"https://passport.bilibili.com/captcha"
-                        headers = {'Host': "passport.bilibili.com"}
-                        response = self._requests("get", url, headers=headers, decode_level=1)
+                        response = self.get_captcha()
                         captcha = self._solve_captcha(response)
                         if captcha:
                             log(f"登录验证码识别结果: {captcha}")
-                            response = login_once(username, password, captcha)
+                            response = self.login_once(username, password, captcha)
                         else:
                             log(f"登录验证码识别服务暂时不可用, 10秒后重试")
                             time.sleep(10)
                             break
                     elif response['code'] == -449:
                         time.sleep(1)
-                        response = self._requests("post", url, data=payload, headers=headers)
+                        response = self.login_once(username, password)
                     elif response['code'] == 0 and response['data']['status'] == 0:
+                        print(response)
                         for cookie in response['data']['cookie_info']['cookies']:
                             self._session.cookies.set(cookie['name'], cookie['value'], domain=".bilibili.com")
                         log("登录成功")
@@ -135,7 +138,7 @@ class Bilibili:
             'Host': "api.bilibili.com",
             'Referer': f"https://space.bilibili.com/{self.get_uid()}/",
         }
-        response = self._requests("get", url, headers=headers)
+        response = self._requests("get", url, headers=headers).json()
         if response and response.get("code") == 0:
             self.info['ban'] = bool(response['data']['silence'])
             self.info['coins'] = response['data']['coins']