diff --git a/DrissionPage/_base/base.py b/DrissionPage/_base/base.py
index a5322e4..9ecf2b1 100644
--- a/DrissionPage/_base/base.py
+++ b/DrissionPage/_base/base.py
@@ -53,6 +53,7 @@ class BaseElement(BaseParser):
 
     def __init__(self, page=None):
         self.page = page
+        self._type = 'BaseElement'
 
     # ----------------以下属性或方法由后代实现----------------
     @property
@@ -362,6 +363,7 @@ class BasePage(BaseParser):
         self._download_path = None
         self._none_ele_return_value = False
         self._none_ele_value = None
+        self._type = 'BasePage'
 
     @property
     def title(self):
diff --git a/DrissionPage/_base/base.pyi b/DrissionPage/_base/base.pyi
index 568a35e..1642529 100644
--- a/DrissionPage/_base/base.pyi
+++ b/DrissionPage/_base/base.pyi
@@ -14,6 +14,7 @@ from .._elements.none_element import NoneElement
 
 
 class BaseParser(object):
+    _type: str
 
     def __call__(self, loc_or_str: Union[Tuple[str, str], str], index: int = 1): ...
 
diff --git a/DrissionPage/_elements/chromium_element.py b/DrissionPage/_elements/chromium_element.py
index 90fa300..8a20a44 100644
--- a/DrissionPage/_elements/chromium_element.py
+++ b/DrissionPage/_elements/chromium_element.py
@@ -53,6 +53,7 @@ class ChromiumElement(DrissionElement):
         self._clicker = None
         self._tag = None
         self._wait = None
+        self._type = 'ChromiumElement'
 
         if node_id and obj_id and backend_id:
             self._node_id = node_id
@@ -783,6 +784,7 @@ class ShadowRoot(BaseElement):
             self._node_id = self._get_node_id(obj_id)
             self._backend_id = self._get_backend_id(self._node_id)
         self._states = None
+        self._type = 'ShadowRoot'
 
     def __repr__(self):
         return f'<ShadowRoot in {self.parent_ele}>'
diff --git a/DrissionPage/_elements/session_element.py b/DrissionPage/_elements/session_element.py
index b8b9f9d..7c67b63 100644
--- a/DrissionPage/_elements/session_element.py
+++ b/DrissionPage/_elements/session_element.py
@@ -305,9 +305,13 @@ def make_session_ele(html_or_ele, loc=None, index=1):
         raise ValueError("定位符必须为str或长度为2的tuple。")
 
     # ---------------根据传入对象类型获取页面对象和lxml元素对象---------------
-    the_type = str(type(html_or_ele))
+    # 直接传入html文本
+    if isinstance(html_or_ele, str):
+        page = None
+        html_or_ele = fromstring(html_or_ele)
+
     # SessionElement
-    if the_type.endswith(".SessionElement'>"):
+    elif html_or_ele._type == 'SessionElement':
         page = html_or_ele.page
 
         loc_str = loc[1]
@@ -328,7 +332,7 @@ def make_session_ele(html_or_ele, loc=None, index=1):
 
         loc = loc[0], loc_str
 
-    elif the_type.endswith(".ChromiumElement'>"):
+    elif html_or_ele._type == 'ChromiumElement':
         loc_str = loc[1]
         if loc[0] == 'xpath' and loc[1].lstrip().startswith('/'):
             loc_str = f'.{loc[1]}'
@@ -353,11 +357,6 @@ def make_session_ele(html_or_ele, loc=None, index=1):
             html = sub(r'^<\?xml.*?>', '', html)
         html_or_ele = fromstring(html)
 
-    # 直接传入html文本
-    elif isinstance(html_or_ele, str):
-        page = None
-        html_or_ele = fromstring(html_or_ele)
-
     # ShadowRoot
     elif isinstance(html_or_ele, BaseElement):
         page = html_or_ele.page
diff --git a/DrissionPage/_pages/chromium_base.py b/DrissionPage/_pages/chromium_base.py
index 9967f0f..26092eb 100644
--- a/DrissionPage/_pages/chromium_base.py
+++ b/DrissionPage/_pages/chromium_base.py
@@ -16,7 +16,7 @@ from urllib.parse import quote
 from DataRecorder.tools import make_valid_name
 
 from .._base.base import BasePage
-from .._elements.chromium_element import ChromiumElement, run_js, make_chromium_eles
+from .._elements.chromium_element import run_js, make_chromium_eles
 from .._elements.none_element import NoneElement
 from .._elements.session_element import make_session_ele
 from .._functions.locator import get_loc, is_loc
@@ -62,6 +62,7 @@ class ChromiumBase(BasePage):
         self._download_path = None
         self._load_end_time = 0
         self._init_jss = []
+        self._type = 'ChromiumBase'
         if not hasattr(self, '_listener'):
             self._listener = None
 
@@ -541,7 +542,7 @@ class ChromiumBase(BasePage):
         """
         if isinstance(loc_or_ele, (str, tuple)):
             loc = get_loc(loc_or_ele)[1]
-        elif isinstance(loc_or_ele, ChromiumElement) or str(type(loc_or_ele)).endswith(".ChromiumFrame'>"):
+        elif loc_or_ele._type in ('ChromiumElement', 'ChromiumFrame'):
             return loc_or_ele
         else:
             raise ValueError('loc_or_str参数只能是tuple、str、ChromiumElement类型。')
@@ -680,13 +681,13 @@ class ChromiumBase(BasePage):
             else:
                 xpath = loc_ind_ele
             ele = self._ele(xpath, timeout=timeout)
-            if ele and not str(type(ele)).endswith(".ChromiumFrame'>"):
+            if ele and ele._type != 'ChromiumFrame':
                 raise TypeError('该定位符不是指向frame元素。')
             r = ele
 
         elif isinstance(loc_ind_ele, tuple):
             ele = self._ele(loc_ind_ele, timeout=timeout)
-            if ele and not str(type(ele)).endswith(".ChromiumFrame'>"):
+            if ele and ele._type != 'ChromiumFrame':
                 raise TypeError('该定位符不是指向frame元素。')
             r = ele
 
@@ -698,7 +699,7 @@ class ChromiumBase(BasePage):
             xpath = f'xpath:(//*[name()="frame" or name()="iframe"])[{loc_ind_ele}]'
             r = self._ele(xpath, timeout=timeout)
 
-        elif str(type(loc_ind_ele)).endswith(".ChromiumFrame'>"):
+        elif loc_ind_ele._type == 'ChromiumFrame':
             r = loc_ind_ele
 
         else:
@@ -717,7 +718,7 @@ class ChromiumBase(BasePage):
         """
         loc = loc or 'xpath://*[name()="iframe" or name()="frame"]'
         frames = self._ele(loc, timeout=timeout, index=None, raise_err=False)
-        return [i for i in frames if str(type(i)).endswith(".ChromiumFrame'>")]
+        return [i for i in frames if i._type == 'ChromiumFrame']
 
     def get_session_storage(self, item=None):
         """获取sessionStorage信息，不设置item则获取全部
diff --git a/DrissionPage/_pages/chromium_base.pyi b/DrissionPage/_pages/chromium_base.pyi
index ae21e4f..8b10867 100644
--- a/DrissionPage/_pages/chromium_base.pyi
+++ b/DrissionPage/_pages/chromium_base.pyi
@@ -62,6 +62,7 @@ class ChromiumBase(BasePage):
         self._init_jss: list = ...
         self._ready_state: Optional[str] = ...
         self._rect: TabRect = ...
+        self._type: str = ...
 
     def _connect_browser(self, tab_id: str = None) -> None: ...
 
@@ -190,7 +191,7 @@ class ChromiumBase(BasePage):
 
     def s_ele(self,
               loc_or_ele: Union[Tuple[str, str], str] = None,
-              index:int = 1) -> Union[SessionElement, NoneElement]: ...
+              index: int = 1) -> Union[SessionElement, NoneElement]: ...
 
     def s_eles(self, loc_or_str: Union[Tuple[str, str], str]) -> List[SessionElement]: ...
 
diff --git a/DrissionPage/_pages/chromium_frame.py b/DrissionPage/_pages/chromium_frame.py
index e224b23..f947823 100644
--- a/DrissionPage/_pages/chromium_frame.py
+++ b/DrissionPage/_pages/chromium_frame.py
@@ -27,15 +27,14 @@ class ChromiumFrame(ChromiumBase):
         :param ele: frame所在元素
         :param info: frame所在元素信息
         """
-        page_type = str(type(page))
-        if 'ChromiumPage' in page_type or 'WebPage' in page_type:
+        if page._type in ('ChromiumPage', 'WebPage'):
             self._page = self._target_page = self.tab = page
             self._browser = page.browser
         else:  # Tab、Frame
             self._page = page.page
             self._browser = self._page.browser
             self._target_page = page
-            self.tab = page.tab if 'ChromiumFrame' in page_type else page
+            self.tab = page.tab if page._type == 'ChromiumFrame' else page
 
         self.address = page.address
         self._tab_id = page.tab_id
@@ -58,6 +57,7 @@ class ChromiumFrame(ChromiumBase):
             self.doc_ele = ChromiumElement(self, obj_id=obj_id)
 
         self._rect = None
+        self._type = 'ChromiumFrame'
         end_time = perf_counter() + 2
         while perf_counter() < end_time:
             if self.url not in (None, 'about:blank'):
diff --git a/DrissionPage/_pages/chromium_page.py b/DrissionPage/_pages/chromium_page.py
index f7d4ac5..64f83e1 100644
--- a/DrissionPage/_pages/chromium_page.py
+++ b/DrissionPage/_pages/chromium_page.py
@@ -56,6 +56,7 @@ class ChromiumPage(ChromiumBase):
         self._page = self
         self._run_browser()
         super().__init__(self.address, tab_id)
+        self._type = 'ChromiumPage'
         self.set.timeouts(base=timeout)
         self._page_init()
 
diff --git a/DrissionPage/_pages/chromium_tab.py b/DrissionPage/_pages/chromium_tab.py
index 9764f8d..0b11bf0 100644
--- a/DrissionPage/_pages/chromium_tab.py
+++ b/DrissionPage/_pages/chromium_tab.py
@@ -45,6 +45,7 @@ class ChromiumTab(ChromiumBase):
         self._browser = page.browser
         super().__init__(page.address, tab_id, page.timeout)
         self._rect = None
+        self._type = 'ChromiumTab'
 
     def _d_set_runtime_settings(self):
         """重写设置浏览器运行参数方法"""
@@ -106,6 +107,7 @@ class WebPageTab(SessionPage, ChromiumTab, BasePage):
         super().__init__(session_or_options=SessionOptions(read_file=False).from_session(copy(page.session),
                                                                                          page._headers))
         super(SessionPage, self).__init__(page=page, tab_id=tab_id)
+        self._type = 'WebPageTab'
 
     def __call__(self, loc_or_str, index=1, timeout=None):
         """在内部查找元素
diff --git a/DrissionPage/_pages/session_page.py b/DrissionPage/_pages/session_page.py
index bbc8e16..2065f96 100644
--- a/DrissionPage/_pages/session_page.py
+++ b/DrissionPage/_pages/session_page.py
@@ -35,6 +35,7 @@ class SessionPage(BasePage):
         self._session = None
         self._set = None
         self._encoding = None
+        self._type = 'SessionPage'
         self._s_set_start_options(session_or_options)
         self._s_set_runtime_settings()
         self._create_session()
diff --git a/DrissionPage/_pages/web_page.py b/DrissionPage/_pages/web_page.py
index 8727e3f..95f2154 100644
--- a/DrissionPage/_pages/web_page.py
+++ b/DrissionPage/_pages/web_page.py
@@ -48,6 +48,7 @@ class WebPage(SessionPage, ChromiumPage, BasePage):
             chromium_options = ChromiumOptions(read_file=chromium_options)
             chromium_options.set_timeouts(base=self._timeout).set_paths(download_path=self.download_path)
         super(SessionPage, self).__init__(addr_or_opts=chromium_options, timeout=timeout)
+        self._type = 'WebPage'
         self.change_mode(self._mode, go=False, copy_cookies=False)
 
     def __call__(self, loc_or_str, index=1, timeout=None):
diff --git a/DrissionPage/_units/actions.py b/DrissionPage/_units/actions.py
index 0a41be9..c66787c 100644
--- a/DrissionPage/_units/actions.py
+++ b/DrissionPage/_units/actions.py
@@ -39,7 +39,7 @@ class Actions:
             is_loc = True
             lx = ele_or_loc[0] + offset_x
             ly = ele_or_loc[1] + offset_y
-        elif isinstance(ele_or_loc, str) or 'ChromiumElement' in str(type(ele_or_loc)):
+        elif isinstance(ele_or_loc, str) or ele_or_loc._type == 'ChromiumElement':
             ele_or_loc = self.page(ele_or_loc)
             self.page.scroll.to_see(ele_or_loc)
             x, y = ele_or_loc.rect.location if offset_x or offset_y else ele_or_loc.rect.midpoint
diff --git a/DrissionPage/_units/scroller.py b/DrissionPage/_units/scroller.py
index 545b3f7..d59e98a 100644
--- a/DrissionPage/_units/scroller.py
+++ b/DrissionPage/_units/scroller.py
@@ -87,7 +87,7 @@ class Scroller(object):
         if not self._wait_complete:
             return
 
-        page = self._driver.page if 'ChromiumElement' in str(type(self._driver)) else self._driver
+        page = self._driver.page if self._driver._type == 'ChromiumElement' else self._driver
         r = page.run_cdp('Page.getLayoutMetrics')
         x = r['layoutViewport']['pageX']
         y = r['layoutViewport']['pageY']
@@ -173,5 +173,5 @@ class FrameScroller(PageScroller):
         :param center: 是否尽量滚动到页面正中，为None时如果被遮挡，则滚动到页面正中
         :return: None
         """
-        ele = loc_or_ele if 'ChromiumElement' in str(type(loc_or_ele)) else self._driver._ele(loc_or_ele)
+        ele = loc_or_ele if loc_or_ele._type == 'ChromiumElement' else self._driver._ele(loc_or_ele)
         self._to_see(ele, center)