from telnetlib import EC
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
import time
db = webdriver.Chrome()
db.get("http://www.testingedu.com.cn:8000/home/User/login.html")
db.maximize_window()
# 获取账号框,密码框,验证码框
username = db