Posted by Python中，
actions = ActionChains(driver)
如果driver进行了重新加载，也就是driver进行了重定向或者driver的网址进行了更改，selenium的行为链就需要重新载入，否则它处理的还是原先的网页，而原先的网页已经不在了，程序就会报错
from selenium import webdriver
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.firefox.service import Service
from selenium.webdriver.common.by import By
driver_path = '/home/jerry/firefox/geckodriver'
s = Service(driver_path)
driver = webdriver.Firefox(service=s)
driver.get('https://lcj.ink')
actions = ActionChains(driver)
a = driver.find_element(By.XPATH,'//li[@id="menu-item-45"]//a[@href="https://lcj.ink/wp-login.php"]')
actions.click(a)
driver.get('https://lcj.ink/wp-login.php')
actions = ActionChains(driver)
#......
actions.perform()