def _return_element(self, ele): return self.driver.driver.execute_script("return arguments[0].shadowRoot", ele) def verify_dl(self): """ 返回最近一个下载，目前仅支持chrome :return: """ self.driver.execute_script(‘window.open("")‘) win_lst = self.driver.window_handles self.driver.switch_to_window(win_lst[-1]) self.driver.get(‘chrome://downloads‘) first_sd = self._return_element(self.driver.find_element_by_css_selector(‘css=downloads-manager‘)) second_sd = self._return_element(first_sd.find_element_by_css_selector("#downloadsList>downloads-item")) name, dl_url = second_sd.find_element_by_css_selector(‘#details‘).text.split(‘\n‘)[:2] self.driver.close() self.driver.switch_to_window(win_lst[0]) return {‘name‘: name, ‘dl_url‘: dl_url}