from selenium import webdriver

from selenium.webdriver.support.wait import WebDriverWait

from selenium.webdriver.support import expected_conditions as Ec

from selenium.webdriver.common.by import By

from selenium.webdriver.common.action_chains import ActionChains  # 鼠标操作的类

driver = webdriver.Chrome()

driver.get("https://www.baidu.com/")

# 窗口最大化

driver.maximize_window()

# 等待元素出现

WebDriverWait(driver,20).until(Ec.visibility_of_element_located((By.XPATH,'//div[@id="u1"]//a[text()="设置"]')))

# 鼠标悬浮到设置按钮上

web = driver.find_element_by_xpath('//div[@id="u1"]//a[text()="设置"]')

ac = ActionChains(driver)

ac.move_to_element(web).perform(）

#  点击操作

driver.find_element_by_xpath('//div[@id="u1"]//a[text()="设置"]').click()

# 等待元素出现

WebDriverWait(driver,20).until(Ec.visibility_of_element_located((By.XPATH,'//a[text()="高级搜索"]')))

# 点击高级搜索

driver.find_element_by_xpath('//a[text()="高级搜索"]').click()