知识点：
import pymongo
from selenium import webdriver
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait
from urllib.parse import quote
from pyquery import PyQuery as pq
driver = webdriver.Chrome()
wait = WebDriverWait(driver,10)
链接： https://www.jianshu.com/p/8a2e58caf2ef