帮我写一下用scrapy和selenium爬取猫眼top100的详细信息的代码

好的，以下是使用Scrapy和Selenium爬取猫眼top100详细信息的Python代码：

import scrapy
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from scrapy.selector import Selector
from scrapy.http import TextResponse

class MaoyanSpider(scrapy.Spider):
    name = 'maoyan'
    allowed_domains = ['maoyan.com']
    start_urls = ['https://maoyan.com/board/4']

    def __init__(self):
        chrome_options = Options()
        chrome_options.add_argument('--headless')
        self.driver = webdriver.Chrome(chrome_options=chrome_options)

    def parse(self, response):
        self.driver.get(response.url)
        response = TextResponse(url=response.url, body=self.driver.page_source, encoding='utf-8')
        movies = response.xpath('//div[@class="movie-item-info"]')
        for movie in movies:
            item = {}
            item['rank'] = movie.xpath('div[@class="board-index"]/text()').extract_first().strip()
            item['title'] = movie.xpath('div[@class="movie-item-info"]/p[@class="name"]/a/@title').extract_first().strip()
            item['star'] = movie.xpath('div[@class="movie-item-info"]/p[@class="star"]/text()').extract_first().strip()
            item['time'] = movie.xpath('div[@class="movie-item-info"]/p[@class="releasetime"]/text()').extract_first().strip()
            yield scrapy.Request(url='https://maoyan.com'+movie.xpath('div[@class="movie-item-info"]/p[@class="name"]/a/@href').extract_first(),
                                 meta={'item': item},
                                 callback=self.parse_detail)

        if response.xpath('//a[@class="next"]'):
            next_page_url = response.xpath('//a[@class="next"]/@href')
            yield scrapy.Request(url='https://maoyan.com'+next_page_url.extract_first(),
                                 callback=self.parse)

    def parse_detail(self, response):
        item = response.meta['item']
        response = Selector(text=self.driver.page_source)
        item['type'] = response.xpath('//div[@class="movie-brief-container"]/ul/li[1]/text()').extract()
        item['length'] = response.xpath('//div[@class="movie-brief-container"]/ul/li[2]/text()').extract()
        yield item

这个代码利用Scrapy框架和Selenium库实现了猫眼电影top100的爬取，其中使用了Chrome浏览器进行模拟访问。可以直接运行在Python环境下，需要安装Scrapy和Selenium依赖库。