资源链接
requests库 http://docs.python-requests.org/en/master/user/quickstart/ http://docs.python-requests.org/zh_CN/latest/user/quickstart.html
scrapy爬虫框架 https://docs.pythontab.com/scrapy/scrapy0.24/
BeautifulSoup库 https://www.crummy.com/software/BeautifulSoup/bs4/doc/index.zh.html
CSS选择器参考手册 http://www.w3school.com.cn/cssref/css_selectors.ASP
XPath选择器参考 http://www.w3school.com.cn/xpath/index.asp
re正则表达式参考 http://www.runoob.com/python/python-reg-expressions.html
Numpy学习 http://www.runoob.com/numpy/numpy-tutorial.html
Pandas学习 https://www.yiibai.com/pandas/python_pandas_series.html
Matplotlib学习 https://matplotlib.org https://blog.csdn.net/qq_34337272/article/details/79555544 http://www.runoob.com/numpy/numpy-matplotlib.html
Python二级考试知识点PDF