Unofficial Python APIs for Crawling, concluding Tmall, JD, Taobao etc.非官方爬虫抓取信息接口，天猫京东优酷等，供python爬虫使用
#声明： 该源码仅为学习交流使用，不用于商业用途，如有侵权问题
请及时联系[email protected](Q:304695350)撤销全部代码
##介绍：
文件名：get_jd.py
用途：非官方-京东商品爬虫API（包括价格、评论等），评分在评价的返回页面里有，销量暂时无法抓取。
抓取所有评论页耗费时间：
Python2 :3.19 s
Python3 :4.21 s
get_jd_rate：根据商品ID与页码获得评论页面的源代码，后续解析工作暂时不做了，就是解析Json
get_jd_rate_totalpagenum：根据商品ID得到评论页码范围，返回值是整型数字，最大页码-1，因为从0开始
get_jd_rate_all：根据商品ID抓取所有评论，返回结果是按顺序存放页面源码的列表
get_jd_price：根据商品ID抓取价格，这个速度最快，而且从来不会封IP
######modifie：2014-11-09 11:23:36
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