def parse(self, response):

        for outer in response.css('#comapreTable tr:not(:first-child)'):

            if outer.css('td[align="center"]'):
                ccode = outer.css('td[align="center"]>a::attr(id)').extract_first()
                cname = outer.css('td[align="center"]>a::text').extract_first()

            for inner in outer.xpath('td[div[@align="left"]/a]'):
                loader = ItemLoader(item=EolZhuanyeItem(), selector=inner)
                loader.add_value('ccode', ccode)
                loader.add_value('cname', cname)
                loader.add_css('url', 'a::attr(href)', lambda urls: urljoin(self.start_urls[0], urls[0]))
                loader.add_xpath('code', 'following-sibling::td[1]/text()', MapCompose(unicode.strip))
                loader.add_css('name', 'a::text', MapCompose(unicode.strip))
                item = loader.load_item()

                yield Request(url=item['url'][0], meta={'item': item}, callback=self.parse_item)