import json
import requests
from lxml import etree
from bs4 import BeautifulSoup
from pymongo import MongoClient
base_url = 'https://t.cnki.net/knavi/journals/searchbaseinfo'
# 初始化mongodb实体类，存储数据库
class mongodb:
def __init__
import json
import requests
from lxml import etree
from bs4 import BeautifulSoup
from pymongo import MongoClient
base_url = 'https://t.cnki.net/knavi/journals/searchbaseinfo'
# 初始化mongodb实体类，存储数据库
class mongodb:
def __init__名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
