scrapy 请求传参

def parse(self, response):
        div_list = response.css(‘div.post_item‘)
        for div in div_list:
            item = ScrItem()
            dec = div.css(‘p.post_item_summary::text‘).extract()[-1]
            author = div.css(‘.post_item_foot a::text‘).extract_first()
            item[‘author‘] = author
　　　　　　　# 将数据存入meta中，callback调用下一个函数
　　　　　　　yield Request(url, callback=self.parse_detail, meta={‘item‘:item})
        next_page = response.css(‘div.pager a:last-child::attr(href)‘).extract_first()
        yield Request(next_page)

    def parse_detail(self, response):
　　　　 # 将数据取出
        item = response.meta.get(‘item‘)
        content = response.css(‘#cnblogs_post_body‘).extract_first()
        item[‘content‘] = content
        yield item