scrapy代码

使用scrapy抓取股票代码

编写spider 首先使用scrapy创建一个项目 scrapy startproject tutorial 选择一个网站这里我们选择的是东方财富网的股票代码页面：http://quote.eastmoney.com/stocklist.html 定义要抓取的数据我们需要抓取股票的代码id，因此只需要定义...

scrapy模拟登录代码演示及cookie原理说明

在源码目录site-packages/scrapy/downloadermiddlewares/cookies.py文件中，可以看到具体的源码：CookiesMiddleware的第前面两个个方法是重载from_crawler：def_init_(self,debug=False):self.jars=defaultdict(CookieJar)self.debug=debug...

Scrapy框架-通用爬虫Broad Crawls（下，具体代码实现）

设置回调函数通过回调函数获取想要的信息具体的代码实现：import scrapy from scrapy.linkextractors import LinkExtractor from scrapy.spiders import CrawlSpider,Rule class GxrcSpider(CrawlSpider):name='gxrc' allowed_domains=['...

独家|手把手教你用scrapy制作一个小程序!（附代码）

4.5.1 对于第一步产生的目录子目录的解释：输入命令：scrapy startproject myproject ls myproject scrapy.cfg:项目配置文件/:项目python模块,之后您将在此加入代码 myproject/items.py:项目items文件 myproject/pipelines.py:项目管道文件...

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