文本提取及处理
标题提取：
1 wljdeMacBook-Pro:Desktop wlj$ scrapy shell "http://wz.sun0769.com/html/question/201806/375913.shtml" 2 2018-06-21 23:44:36 [scrapy.utils.log] INFO: Scrapy 1.5.0 started (bot: scrapybot) 3 2018-06-21 23:44:36 [scrapy.utils.log] INFO: Versions: lxml 4.2.1.0, libxml2 2.9.8, cssselect 1.0.3, parsel 1.4.0, w3lib 1.19.0, Twisted 18.4.0, Python 3.6.5 (default, Apr 25 2018, 14:23:58) - [GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)], pyOpenSSL 18.0.0 (OpenSSL 1.1.0h 27 Mar 2018), cryptography 2.2.2, Platform Darwin-17.5.0-x86_64-i386-64bit 4 2018-06-21 23:44:36 [scrapy.crawler] INFO: Overridden settings: {'DUPEFILTER_CLASS': 'scrapy.dupefilters.BaseDupeFilter', 'LOGSTATS_INTERVAL': 0} 5 2018-06-21 23:44:36 [scrapy.middleware] INFO: Enabled extensions: 6 ['scrapy.extensions.corestats.CoreStats', 7 'scrapy.extensions.telnet.TelnetConsole', 8 'scrapy.extensions.memusage.MemoryUsage'] 9 2018-06-21 23:44:36 [scrapy.middleware] INFO: Enabled downloader middlewares: 10 ['scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware', 11 'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware', 12 'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware', 13 'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware', 14 'scrapy.downloadermiddlewares.retry.RetryMiddleware', 15 'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware', 16 'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware', 17 'scrapy.downloadermiddlewares.redirect.RedirectMiddleware', 18 'scrapy.downloadermiddlewares.cookies.CookiesMiddleware', 19 'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware', 20 'scrapy.downloadermiddlewares.stats.DownloaderStats'] 21 2018-06-21 23:44:36 [scrapy.middleware] INFO: Enabled spider middlewares: 22 ['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware', 23 'scrapy.spidermiddlewares.offsite.OffsiteMiddleware', 24 'scrapy.spidermiddlewares.referer.RefererMiddleware', 25 'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware', 26 'scrapy.spidermiddlewares.depth.DepthMiddleware'] 27 2018-06-21 23:44:36 [scrapy.middleware] INFO: Enabled item pipelines: 28 [] 29 2018-06-21 23:44:36 [scrapy.extensions.telnet] DEBUG: Telnet console listening on 127.0.0.1:6023 30 2018-06-21 23:44:36 [scrapy.core.engine] INFO: Spider opened 31 2018-06-21 23:44:36 [scrapy.core.engine] DEBUG: Crawled (200) <GET http://wz.sun0769.com/html/question/201806/375913.shtml> (referer: None) 32 [s] Available Scrapy objects: 33 [s] scrapy scrapy module (contains scrapy.Request, scrapy.Selector, etc) 34 [s] crawler <scrapy.crawler.Crawler object at 0x102d30c88> 35 [s] item {} 36 [s] request <GET http://wz.sun0769.com/html/question/201806/375913.shtml> 37 [s] response <200 http://wz.sun0769.com/html/question/201806/375913.shtml> 38 [s] settings <scrapy.settings.Settings object at 0x103b276d8> 39 [s] spider <DefaultSpider 'default' at 0x103ddfc18> 40 [s] Useful shortcuts: 41 [s] fetch(url[, redirect=True]) Fetch URL and update local objects (by default, redirects are followed) 42 [s] fetch(req) Fetch a scrapy.Request and update local objects 43 [s] shelp() Shell help (print this help) 44 [s] view(response) View response in a browser 45 >>> response.url 46 'http://wz.sun0769.com/html/question/201806/375913.shtml' 47 >>> from scrapy.linkextractors import LinkExtractor 48 >>> response.xpath('//div[@class="pagecenter p3"]//strong/text()').extract()[0] 49 ' 提问：森林湖路乱停乱放xa0xa0编号:189251xa0xa0' 50 >>>
正文提取：
1 >>> response.xpath('//div[@class="c1 text14_2"]/text()').extract()[0] 2 'xa0xa0xa0xa0 南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。' 3 >>> response.xpath('//div[@class="c1 text14_2"]/text()').extract() 4 ['xa0xa0xa0xa0 南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。', 'xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。', 'xa0xa0xa0xa0 请多派警力加强执法。'] 5 >>>
python3中处理：
1 wljdeMacBook-Pro:~ wlj$ python3 2 Python 3.6.5 (default, Apr 25 2018, 14:23:58) 3 [GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)] on darwin 4 Type "help", "copyright", "credits" or "license" for more information. 5 >>> strs = ' 提问：森林湖路乱停乱放xa0xa0编号:189251xa0xa0' 6 >>> strs.split(' ')[-1].split(":")[-1] 7 '189251xa0xa0' 8 >>> strs.split(' ')[-1].split(":")[-1].strip() 9 '189251' 10 >>> lists = ['xa0xa0xa0xa0 南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的 停，还衍生出噪音问题。', 'xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。', 'xa0xa0xa0xa0 请多派警力加强执法。'] 11 >>> lists 12 ['xa0xa0xa0xa0 南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。', 'xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。', 'xa0xa0xa0xa0 请多派警力加强执法。'] 13 >>> string = "".join(lists) 14 >>> string 15 'xa0xa0xa0xa0 南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。xa0xa0xa0xa0 请多派警力加强执法。' 16 >>> string = "*****".join(lists) 17 >>> string 18 'xa0xa0xa0xa0 南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。*****xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。*****xa0xa0xa0xa0 请多派警力加强执法。' 19 >>> string = "".join(lists) 20 >>> string 21 'xa0xa0xa0xa0 南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。xa0xa0xa0xa0 请多派警力加强执法。' 22 >>> string.replace(" ","") 23 'xa0xa0xa0xa0南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。xa0xa0xa0xa0而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。xa0xa0xa0xa0请多派警力加强执法。' 24 >>> string.strip() 25 '南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。xa0xa0xa0xa0 请多派警力加强执法。' 26 >>> string.lstrip() 27 '南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。xa0xa0xa0xa0 请多派警力加强执法。' 28 >>> string.rstrip() 29 'xa0xa0xa0xa0 南城森林湖楼盘的森林湖路，车辆乱停乱放越趋严重。现在四车道的马路，一到晚上经常占用2~3条车道，严重影响通行、造成行车安全隐患。严重的乱停，还衍生出噪音问题。xa0xa0xa0xa0 而且这条路不知为何经常有大货车出入，每当有大货车出入，必造成拥堵。xa0xa0xa0xa0 请多派警力加强执法。' 30 >>>