from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import TimeoutException
import time
login_url='https://passport.jd.com/uc/login'
uid='********'
pwd='********'
browser=webdriver.Firefox()
wait=WebDriverWait(browser, 10)
def login():
  try:
    browser.get(login_url)
    login_tab_u=wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "div.login-tab:nth-child(3)")))
    login_tab_u.click()#这里我们没有获取那个a标签，而是直接获取外层的div标签，比较简单而且方便
    uid_input = wait.until(EC.presence_of_element_located((By.CSS_SELECTOR, "#loginname")))
    pwd_input=wait.until(EC.presence_of_element_located((By.CSS_SELECTOR, "#nloginpwd")))
    login_button = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#loginsubmit")))
    uid_input.send_keys(uid)
    pwd_input.send_keys(pwd)
    login_button.click()
  except TimeoutException:
    login()
def main():
  login()
  time.sleep(5)
  browser.close()
if __name__=='__main__':
  main()

vip_url='https://vip.jd.com/home.html'
def user_singin():
  try:
    browser.get(vip_url)
    login_tab_u=wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "div.login-tab:nth-child(3)")))
    login_tab_u.click()
    uid_input = wait.until(EC.presence_of_element_located((By.CSS_SELECTOR, "#loginname")))
    pwd_input=wait.until(EC.presence_of_element_located((By.CSS_SELECTOR, "#nloginpwd")))
    login_button = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#loginsubmit")))
    uid_input.send_keys(uid)
    pwd_input.send_keys(pwd)
    login_button.click()
    sign_in_button=wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#signIn")))
    sign_in_button.click()
    print('您已签到成功！')
  except TimeoutException:
    user_singin()