大众点评反爬虫机制，用户评论自编码替换
本人是研究推荐系统的，最近在看到一篇文章Exploiting Ranking Consistency Principle in Representation Learning for Location Promotion觉得挺有意思的，想深入了解一下，然后想着从大众点评上爬点数据，于是就随手打开大众点评，点开评论，打开源码，研究一下爬虫策略，这才发现，现在大众点评除了在代理IP上下功夫反爬虫外，在源码上也做文章了，具体如下：
网页源码：
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截取其中一句：
这<span class="fr-DMrt"></span>店我<span class="fr-Ky0H"></span><span class="fr-QmtS"></span><span class="fr-SHzo"></span><span class="fr-mUfe"></span>烈<span class="fr-mAqU"></span>call，
可以发现其中有些字被网页元素替换了，加载到前端的时候再显示原始评论，可以说很灵性了。
