node.js 抓取

http://blog.****.net/youyudehexie/article/details/11910465

http://www.tuicool.com/articles/z2YbAr

http://www.sufeinet.com/thread-8413-1-1.html

https://github.com/cheeriojs/cheerio

http://blog.fens.me/nodejs-crawler-douban/