https://www.crummy.com/software/BeautifulSoup/bs4/doc/index.zh.html

BeautifulSoup4：常规用法

https://www.jianshu.com/u/7731e83f3a4e

BeautifulSoup4常用方法：

https://www.crummy.com/software/BeautifulSoup/bs4/doc/index.zh.html#find

scrapy中文说明手册：

http://scrapy-chs.readthedocs.io/zh_CN/0.24/topics/settings.html

某人的scrapy心得：

http://www.cnblogs.com/twelfthing/articles/4620533.html

jieba分词使用手册：

http://blog.****.net/u014589856/article/details/78934419