python + selenium 处理下拉框/alert

from seleniumimport webdriver

from selenium.webdriver.support.selectimport Select

from selenium.webdriver.common.action_chainsimport ActionChains

import time

# 下拉框定位

driver = webdriver.Chrome()

driver.maximize_window()

url ="https://www.baidu.com/"

driver.get(url)

driver.implicitly_wait(10)

a = driver.find_element_by_link_text("设置")

ActionChains(driver).move_to_element(a).perform()

driver.find_element_by_link_text("搜索设置").click()

time.sleep(3)

# driver.find_element_by_id("nr").click()

# driver.find_element_by_xpath(".//*[@id='nr']/option[3]").click()

b = driver.find_element_by_id("nr")

Select(b).select_by_index(2)

b.click()

Select(b).select_by_value("50")

b.click()

Select(b).select_by_visible_text("每页显示20条")

b.click()

driver.find_element_by_link_text("保存设置").click()

#针对Alert弹窗处理

c = driver.switch_to.alert#切换到alert

d = c.text

print(d)

time.sleep(3)

c.accept(）

driver.quit()