Scrapy 爬取
说明
要执行您的爬虫，请在您的
first_scrapy 目录中运行以下命令-
其中，
first 是创建爬虫时指定的爬虫的名称。
爬虫爬行后，您可以看到以下输出-
2016-08-09 18:13:07-0400 [scrapy] INFO: Scrapy started (bot: tutorial)
2016-08-09 18:13:07-0400 [scrapy] INFO: Optional features available: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Overridden settings: {}
2016-08-09 18:13:07-0400 [scrapy] INFO: Enabled extensions: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Enabled downloader middlewares: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Enabled spider middlewares: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Enabled item pipelines: ...
2016-08-09 18:13:07-0400 [scrapy] INFO: Spider opened
2016-08-09 18:13:08-0400 [scrapy] DEBUG: Crawled (200)
<GET http://www.dmoz.org/Computers/Programming/Languages/Python/Resources/> (referer: None)
2016-08-09 18:13:09-0400 [scrapy] DEBUG: Crawled (200)
<GET http://www.dmoz.org/Computers/Programming/Languages/Python/Books/> (referer: None)
2016-08-09 18:13:09-0400 [scrapy] INFO: Closing spider (finished)
正如您在输出中看到的，对于每个 URL，都有一个日志行，
(referer: None) 声明这些 URL 是起始 URL，并且它们没有引用。接下来，您应该会看到在
first_scrapy 目录中创建了两个名为
Books.html 和
Resources.html 的新文件。
