关于页面标签的切换

old_url = driver.current_url
old_handle = driver.current_window_handle
old_title = driver.title

print old_url, old_handle,old_title

above = driver.find_element_by_xpath("html/body/div[2]/div/div[1]/div/div[4]/div/div")
ActionChains(driver).move_to_element(above).perform()
time.sleep(1)
driver.find_element_by_xpath("html/body/div[2]/div/div[1]/div/div[4]/div/ul/li[1]/a").click()

driver.switch_to_window(driver.window_handles[-1])

driver.find_element_by_link_text("首页").click()