diff --git a/ProxyDecoder/Shadowsocks.py b/ProxyDecoder/Shadowsocks.py
index 02e2a18..a4a1a4a 100644
--- a/ProxyDecoder/Shadowsocks.py
+++ b/ProxyDecoder/Shadowsocks.py
@@ -4,32 +4,35 @@
 import re
 from ProxyDecoder import baseFunc
 
-def __ssPlainDecode(url: str):
-    '''
+def __ssPlainDecode(url: str) -> dict or None:
+    """
     Shadowsocks原始分享链接解码
 
     FORMAT: ss://method:password@hostname:port#TAG
 
     EXAMPLE:
         ss://bf-cfb:test@192.168.100.1:8888#EXAMPLE
-    '''
-    content = re.search(r'^ss://([\s\S]+?)(#[\s\S]*)?$', url) # ...#REMARK
-    info = re.search(
-        r'^([\S]+?):([\S]+)@([a-zA-Z0-9.:_-]+):([0-9]+)$',
-        content.group(1) # method:password@server:port
-    )
-    remark = content.group(2)[1:] if content.group(2) != None else ''
-    remark = remark.replace('+', ' ') # 向后兼容部分客户端
-    return {
-        'server': info[3],
-        'port': int(info[4]),
-        'password': info[2],
-        'method': info[1],
-        'remark': baseFunc.urlDecode(remark)
-    }
+    """
+    try:
+        content = re.search(r'^ss://([\s\S]+?)(#[\s\S]*)?$', url) # ...#REMARK
+        info = re.search(
+            r'^([\S]+?):([\S]+)@([a-zA-Z0-9.:_-]+):([0-9]+)$',
+            content.group(1) # method:password@server:port
+        )
+        remark = content.group(2)[1:] if content.group(2) is not None else ''
+        remark = remark.replace('+', ' ') # 向后兼容部分客户端
+        return {
+            'server': info[3],
+            'port': int(info[4]),
+            'passwd': info[2],
+            'method': info[1],
+            'remark': baseFunc.urlDecode(remark)
+        }
+    except:
+        return None
 
-def __ssCommonDecode(url: str):
-    '''
+def __ssCommonDecode(url: str) -> dict or None:
+    """
     Shadowsocks经典分享链接解码
 
     FORMAT: ss://BASE64-ENCODED-STRING-WITHOUT-PADDING#TAG
@@ -38,9 +41,9 @@ def __ssCommonDecode(url: str):
         base64('bf-cfb:test/!@#:@192.168.100.1:8888')
         -> YmYtY2ZiOnRlc3QvIUAjOkAxOTIuMTY4LjEwMC4xOjg4ODg
         -> ss://YmYtY2ZiOnRlc3QvIUAjOkAxOTIuMTY4LjEwMC4xOjg4ODg#example-server
-    '''
-    content = re.search(r'^ss://([a-zA-Z0-9_=+\\-]+)#?([\S]*)?$', url) # base64#REMARK
+    """
     try:
+        content = re.search(r'^ss://([a-zA-Z0-9_=+\\-]+)#?([\S]*)?$', url)  # base64#REMARK
         info = re.search(
             r'^([\S]+?):([\S]+)@([a-zA-Z0-9.:_-]+):([0-9]+)$',
             baseFunc.base64Decode(content.group(1)) # method:password@server:port
@@ -48,15 +51,15 @@ def __ssCommonDecode(url: str):
         return {
             'server': info[3],
             'port': int(info[4]),
-            'password': info[2],
+            'passwd': info[2],
             'method': info[1],
             'remark': baseFunc.urlDecode(content.group(2))
         }
     except:
         return None
 
-def __sip002Decode(url: str):
-    '''
+def __sip002Decode(url: str) -> dict or None:
+    """
     Shadowsocks SIP002分享链接解码
 
     FORMAT:
@@ -69,12 +72,12 @@ def __sip002Decode(url: str):
         obfs-local;obfs=http -> obfs-local%3Bobfs%3Dhttp
 
         => ss://cmM0LW1kNTpwYXNzd2Q@192.168.100.1:8888/?plugin=obfs-local%3Bobfs%3Dhttp#Example
-    '''
-    content = re.search(
-        r'^ss://([a-zA-Z0-9_=+\\-]+)@([a-zA-Z0-9.:_-]+):([0-9]+)'
-        r'/?([\S]*)$', url # base64@server:port/... (/可选)
-    )
+    """
     try:
+        content = re.search(
+            r'^ss://([a-zA-Z0-9_=+\\-]+)@([a-zA-Z0-9.:_-]+):([0-9]+)'
+            r'/?([\S]*)$', url  # base64@server:port/... (/可选)
+        )
         userInfo = re.search(
             r'^([\S]+?):([\S]+)$',
             baseFunc.base64Decode(content.group(1)) # method:password
@@ -82,20 +85,24 @@ def __sip002Decode(url: str):
         info = {
             'server': content.group(2),
             'port': int(content.group(3)),
-            'password': userInfo.group(2),
-            'method': userInfo.group(1)
+            'passwd': userInfo.group(2),
+            'method': userInfo.group(1),
+            'remark': ''
         }
         if content.group(4).find('#') != -1: # ...#REMARK
             content = re.search(
                 r'^\??([\S]*)#([\S]*)$',
                 content.group(4) # ?...#REMARK (?可选)
             )
-            remark = content.group(2)
+            info['remark'] = baseFunc.urlDecode(
+                content.group(2)
+            )
         else:
             content = re.search(
                 r'^\??([\S]*)$',
                 content.group(4) # ?... (?可选)
             )
+        plugin = ''
         for field in content.group(1).split('&'): # /?plugin=...&other1=...&other2=...
             if field.find('=') == -1: # 缺失xxx=...
                 continue
@@ -103,44 +110,45 @@ def __sip002Decode(url: str):
             if field.group(1) == 'plugin':
                 plugin = baseFunc.urlDecode(field.group(2)) # plugin参数
                 break
-        plugin = plugin if 'plugin' in dir() else '' # 无plugin时为空
         if plugin.find(';') == -1: # plugin=... (无参数)
-            info['plugin'] = plugin
-            info['pluginParam'] = ''
+            info['plugin'] = {
+                'type': plugin,
+                'param': ''
+            }
         else: # plugin=...;... (带参数)
             plugin = re.search(r'^([\S]*?);([\S]*)$', plugin) # 插件名;插件参数
-            info['plugin'] = plugin.group(1)
-            info['pluginParam'] = plugin.group(2)
-        info['remark'] = baseFunc.urlDecode(
-            remark if 'remark' in dir() else '' # 无remark时为空
-        )
+            info['plugin'] = {
+                'type': plugin.group(1),
+                'param': plugin.group(2)
+            }
         return info
     except:
         return None
 
-def ssDecode(url: str):
-    '''
-    Shadowsocks 分享链接解码
+def ssDecode(url: str) -> dict or None:
+    """
+    Shadowsocks分享链接解码
 
         链接合法:
-            return {...}
+            return {
+                'type': 'ss',
+                ...
+            }
 
         链接不合法:
             return None
-    '''
+    """
     try:
         if url[0:5] != 'ss://':
             return None
         result = __ssCommonDecode(url) # try shadowsocks common decode
-        if result == None:
+        if result is None:
             result = __sip002Decode(url) # try shadowsocks sip002 decode
-        if result == None:
+        if result is None:
             result = __ssPlainDecode(url) # try shadowsocks plain decode
-        if result != None: # 解析成功
+        if result is not None: # 解析成功
             result['type'] = 'ss'
             return result
-        else: # 解析失败
-            return None
     except:
         pass
     return None
diff --git a/ProxyDecoder/ShadowsocksR.py b/ProxyDecoder/ShadowsocksR.py
index 5102aaf..cef6cd7 100644
--- a/ProxyDecoder/ShadowsocksR.py
+++ b/ProxyDecoder/ShadowsocksR.py
@@ -4,8 +4,8 @@
 import re
 from ProxyDecoder import baseFunc
 
-def __ssrCommonDecode(url: str):
-    '''
+def __ssrCommonDecode(url: str) -> dict or None:
+    """
     ShadowsocksR经典分享链接解码
 
     FORMAT: ssr://BASE64-ENCODED-STRING-WITHOUT-PADDING
@@ -14,19 +14,19 @@ def __ssrCommonDecode(url: str):
         ssr://{base64}
         -> server:port:protocol:method:obfs:base64(passwd)/?...
         -> obfsparam=...&protoparam=...&remarks=...&group=...
-    '''
+    """
     try:
         content = re.search(r'^ssr://([\S]+)$', url).group(1) # ssr://{base64}
         content = re.search(
             r'^([a-zA-Z0-9.:_-]*):([0-9]*):' # server:p/r
             r'([0-9a-zA-Z_.-]*):([0-9a-zA-Z_.-]*):([0-9a-zA-Z_.-]*):' # protocol:method:obfs:
-            r'([0-9a-zA-Z_=+\\-]*)(/\?)?([\S]*)?$' # base(passwd)/?...
-            , baseFunc.base64Decode(content)
+            r'([0-9a-zA-Z_=+\\-]*)(/\?)?([\S]*)?$', # base(passwd)/?...
+            baseFunc.base64Decode(content)
         )
         info = {
             'server': content.group(1),
             'port': int(content.group(2)),
-            'password': baseFunc.base64Decode(content.group(6)),
+            'passwd': baseFunc.base64Decode(content.group(6)),
             'method': content.group(4),
             'protocol': content.group(3),
             'obfs': content.group(5),
@@ -47,25 +47,26 @@ def __ssrCommonDecode(url: str):
     except:
         return None
 
-def ssrDecode(url: str):
-    '''
-    ShadowsocksR 分享链接解码
+def ssrDecode(url: str) -> dict or None:
+    """
+    ShadowsocksR分享链接解码
 
         链接合法:
-            return {...}
+            return {
+                'type': 'ssr',
+                ...
+            }
 
         链接不合法:
             return None
-    '''
+    """
     try:
         if url[0:6] != 'ssr://':
             return None
         result = __ssrCommonDecode(url) # try common decode
-        if result != None: # 解析成功
+        if result is not None: # 解析成功
             result['type'] = 'ssr'
             return result
-        else: # 解析失败
-            return None
     except:
         pass
     return None
diff --git a/ProxyDecoder/__init__.py b/ProxyDecoder/__init__.py
index 3e43b84..a291772 100644
--- a/ProxyDecoder/__init__.py
+++ b/ProxyDecoder/__init__.py
@@ -3,4 +3,4 @@
 
 from ProxyDecoder.decoder import *
 
-__all__ = [ 'decode' ]
+__all__ = ['decode']
diff --git a/ProxyDecoder/baseFunc.py b/ProxyDecoder/baseFunc.py
index b50ed20..1c431ef 100644
--- a/ProxyDecoder/baseFunc.py
+++ b/ProxyDecoder/baseFunc.py
@@ -4,19 +4,19 @@
 import base64
 import urllib.parse
 
-def urlEncode(content: str):
+def urlEncode(content: str) -> str or None:
     try:
         return urllib.parse.urlencode(content)
     except:
         return None
 
-def urlDecode(content: str):
+def urlDecode(content: str) -> str or None:
     try:
         return urllib.parse.unquote(content)
     except:
         return None
 
-def base64Encode(content: str, urlSafe: bool = False, isPadding: bool = True):
+def base64Encode(content: str, urlSafe: bool = False, isPadding: bool = True) -> str or None:
     try:
         content = base64.b64encode(content.encode()).decode()
         if urlSafe:
@@ -28,11 +28,11 @@ def base64Encode(content: str, urlSafe: bool = False, isPadding: bool = True):
     except:
         return None
 
-def base64Decode(content: str):
-    content = content.replace('-', '+').replace('_', '/')
-    if len(content) % 4 in range(2, 4): # remainder -> 2 or 3
-        content = content.ljust((len(content) // 4 + 1) * 4, '=') # increase to 4n
+def base64Decode(content: str) -> str or None:
     try:
+        content = content.replace('-', '+').replace('_', '/')
+        if len(content) % 4 in range(2, 4):  # remainder -> 2 or 3
+            content = content.ljust((len(content) // 4 + 1) * 4, '=')  # increase to 4n
         return base64.b64decode(content).decode()
     except:
         return None
diff --git a/ProxyDecoder/decoder.py b/ProxyDecoder/decoder.py
index f9cc865..7b59243 100644
--- a/ProxyDecoder/decoder.py
+++ b/ProxyDecoder/decoder.py
@@ -5,8 +5,8 @@ import re
 from ProxyDecoder import Shadowsocks
 from ProxyDecoder import ShadowsocksR
 
-def decode(url):
-    '''
+def decode(url: str) -> dict or None:
+    """
     代理分享链接解码
 
         链接无效:
@@ -18,8 +18,7 @@ def decode(url):
                 '...': '...',
                 ...
             }
-
-    '''
+    """
     try:
         scheme = re.search(r'^([\S]+?)://([\s\S]+)$', url).group(1)
         if scheme == 'ss':