Python网络数据采集
<<Python网络数据采集>>官方源码链接:https://github.com//REMitchell/python-scraping
urllib官方文档:https://docs.python.org/3/library/urllib.html
BeautifulSoup 4官方安装文档:https://www.crummy.com/software/BeautifulSoup/bs4/doc/
https://github.com/REMitchell/python-scraping/blob/master/Chapter01_BeginningToScrape.ipynb