scrapy框架,selector

Question

尝试根据网络上自学教程使用scrapy
开始就崩了
spider代码如下

import scrapy


class DoubanSpider(scrapy.Spider):
    name = 'douban'
    allowed_domains = ['moive.douban.com']
    start_urls = ['https://movie.douban.com/top250']

    def parse(self, response):
        sel = scrapy.Selector(response)
        a = sel.xpath('//div')
        print(a)
        # for base in base_list:
        #     name = base.xpath('.//div')

始终找不到元素，已经确定robot协议为False
在直接使用xpath进行解析时会得到数据，selector之后无法查询到

Answer 1

结果是什么