MixPage的__init__()的drission参数可接收's'或'd'，以简易方式创建对象

DrissionPage/mix_page.py

@@ -32,12 +32,15 @@ class MixPage(Null, SessionPage, DriverPage):
     这些功能由DriverPage和SessionPage类实现。
     """
 
-    def __init__(self, drission: Drission = None, mode: str = 'd', timeout: float = 10):
+    def __init__(self, drission: Union[Drission, str] = None, mode: str = 'd', timeout: float = 10):
         """初始化函数
-        :param drission: 整合了driver和session的类
+        :param drission: 整合了driver和session的类，传入's'或'd'时快速配置相应模式
         :param mode: 默认使用selenium的d模式
         """
         super().__init__()
+        if drission in ['s', 'd']:
+            mode = drission
+            drission = None
         self._drission = drission or Drission()
         self._session = None
         self._driver = None