from selenium import webdriver
from time import sleep
from selenium.webdriver import ActionChains
from selenium.webdriver.common.keys import Keys

driver = webdriver.Firefox()
action = ActionChains(driver)
URL = r"C:\Users\I\Desktop\注册A.html"
driver.get(URL)

# 使用css的id定位，定位用户名，输入admin
ele = driver.find_element_by_css_selector("#userA")

# 键盘操作，删除
# ele.send_keys("admin")
# ele.send_keys(Keys.BACK_SPACE)

# 需求：键盘操作，复制用户名，粘贴到密码框,并清除
ele.send_keys("admin")
ele.send_keys(Keys.CONTROL, "a")
ele.send_keys(Keys.CONTROL, "c")

ele_pw = driver.find_element_by_css_selector("#passwordA")
ele_pw.send_keys(Keys.CONTROL, "v")
ele_pw.clear()

sleep(8)
driver.quit()