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scrapy shell http://bj.ganji.com/fang1/chaoyang/
In [1]: response
Out[1]: <200 http://bj.ganji.com/fang1/chaoyang/>
In [2]: view(response)
Out[2]: True
In [26]: response.xpath(‘‘‘//*[@class="f-list-item "]/dl/dd[5]/div[1]/span[1]/text()‘‘‘).extract()
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原文：http://www.cnblogs.com/missmissmiss/p/7158482.html