scrapy爬取豆瓣电影top250代码

可以直接回答，以下是 Python 代码示例：

import scrapy

class DoubanTop250Spider(scrapy.Spider):
    name = 'douban_top250'
    allowed_domains = ['movie.douban.com']
    start_urls = ['https://movie.douban.com/top250']

    def parse(self, response):
        for movie in response.xpath('//*[@class="grid_view"]/li'):
            yield {
                'title': movie.xpath('.//span[@class="title"]/text()').extract_first(),
                'rating': movie.xpath('.//span[@class="rating_num"]/text()').extract_first(),
                'link': movie.xpath('.//@href').extract_first()
            }

        next_page = response.xpath('//*[@class="next"]/a/@href')
        if next_page:
            yield response.follow(next_page, self.parse)

希望能对你有所帮助。