弹窗处理

# coding = utf-8
import time
from selenium import webdriver
from time import sleep
driver = webdriver.Chrome()
driver.get("http://www.baidu.com/")
time.sleep(3)
driver.maximize_window()
driver.find_element_by_id("s-usersetting-top").click()
time.sleep(2)
driver.find_element_by_link_text("搜索设置").click()
time.sleep(2)
driver.find_element_by_link_text("保存设置").click()
time.sleep(2)
alert=driver.switch_to_alert()#定义弹窗
alert.accept()#点击弹窗确定