爬虫没有数据结果

小白学python爬虫，使用scrapy框架进行爬取网站数据，遇到爬取数据的时候没有返回的结果，代码是根据视频里的老师敲的，看着挺简单的一个程序，网上看了很多方法都没解决，求大神帮助。

这是代码

#-- coding: utf-8 --
import scrapy
from scrapy.http.response.html import HtmlResponse
from scrapy.selector.unified import SelectorList

class SpiderDxysSpider(scrapy.Spider):
name = ‘spider_dxys’
allowed_domains = [‘dxy.com/search/health’]
start_urls = [f’https://dxy.com/view/i/recommend/referral/list?{page_index}&items_per_page=5&q=%E6%8A%91%E9%83%81%E7%97%87&spell_check=false&postcode=000001/’ for page_index in range(1,6)]

def parse(self, response):
    # selectorList
    hospitaldivs=response.xpath("//div[@id='comment-item']/div")
    # hospitaldivs = response.xpath('.//div')
    #     Selector
    for hospitaldiv in hospitaldivs:
        hospital = hospitaldiv.xpath(".//p/text()").getall()
        print(hospital)

这是返回的信息

2020-03-11 18:20:10 [scrapy.utils.log] INFO: Scrapy 1.6.0 started (bot: yiyu)
2020-03-11 18:20:10 [scrapy.utils.log] INFO: Versions: lxml 4.4.1.0, libxml2 2.9.9, cssselect 1.1.0, parsel 1.5.2, w3lib 1.21.0, Twisted 19.10.0, Python 3.7.4 (default, Aug 9 2019, 18:34:13) [MSC v.1915 64 bit (AMD64)], pyOpenSSL 19.0.0 (OpenSSL 1.1.1d 10 Sep 2019), cryptography 2.7, Platform Windows-10-10.0.17763-SP0
2020-03-11 18:20:10 [scrapy.crawler] INFO: Overridden settings: {‘BOT_NAME’: ‘yiyu’, ‘NEWSPIDER_MODULE’: ‘yiyu.spiders’, ‘SPIDER_MODULES’: [‘yiyu.spiders’]}
2020-03-11 18:20:10 [scrapy.extensions.telnet] INFO: Telnet Password: ec002cef1ec1b96b
2020-03-11 18:20:10 [scrapy.middleware] INFO: Enabled extensions:
[‘scrapy.extensions.corestats.CoreStats’,
‘scrapy.extensions.telnet.TelnetConsole’,
‘scrapy.extensions.logstats.LogStats’]
2020-03-11 18:20:12 [scrapy.middleware] INFO: Enabled downloader middlewares:
[‘scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware’,
‘scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware’,
‘scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware’,
‘scrapy.downloadermiddlewares.useragent.UserAgentMiddleware’,
‘scrapy.downloadermiddlewares.retry.RetryMiddleware’,
‘scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware’,
‘scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware’,
‘scrapy.downloadermiddlewares.redirect.RedirectMiddleware’,
‘scrapy.downloadermiddlewares.cookies.CookiesMiddleware’,
‘scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware’,
‘scrapy.downloadermiddlewares.stats.DownloaderStats’]
2020-03-11 18:20:12 [scrapy.middleware] INFO: Enabled spider middlewares:
[‘scrapy.spidermiddlewares.httperror.HttpErrorMiddleware’,
‘scrapy.spidermiddlewares.offsite.OffsiteMiddleware’,
‘scrapy.spidermiddlewares.referer.RefererMiddleware’,
‘scrapy.spidermiddlewares.urllength.UrlLengthMiddleware’,
‘scrapy.spidermiddlewares.depth.DepthMiddleware’]
2020-03-11 18:20:12 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2020-03-11 18:20:12 [scrapy.core.engine] INFO: Spider opened
2020-03-11 18:20:12 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2020-03-11 18:20:12 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2020-03-11 18:20:12 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://dxy.com/view/i/recommend/referral/list?3&items_per_page=5&q=%E6%8A%91%E9%83%81%E7%97%87&spell_check=false&postcode=000001/> (referer: None)
2020-03-11 18:20:12 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://dxy.com/view/i/recommend/referral/list?2&items_per_page=5&q=%E6%8A%91%E9%83%81%E7%97%87&spell_check=false&postcode=000001/> (referer: None)
2020-03-11 18:20:12 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://dxy.com/view/i/recommend/referral/list?1&items_per_page=5&q=%E6%8A%91%E9%83%81%E7%97%87&spell_check=false&postcode=000001/> (referer: None)
2020-03-11 18:20:12 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://dxy.com/view/i/recommend/referral/list?4&items_per_page=5&q=%E6%8A%91%E9%83%81%E7%97%87&spell_check=false&postcode=000001/> (referer: None)
2020-03-11 18:20:12 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://dxy.com/view/i/recommend/referral/list?5&items_per_page=5&q=%E6%8A%91%E9%83%81%E7%97%87&spell_check=false&postcode=000001/> (referer: None)
2020-03-11 18:20:12 [scrapy.core.engine] INFO: Closing spider (finished)
2020-03-11 18:20:12 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{‘downloader/request_bytes’: 2005,
‘downloader/request_count’: 5,
‘downloader/request_method_count/GET’: 5,
‘downloader/response_bytes’: 9105,
‘downloader/response_count’: 5,
‘downloader/response_status_count/200’: 5,
‘finish_reason’: ‘finished’,
‘finish_time’: datetime.datetime(2020, 3, 11, 10, 20, 12, 756517),
‘log_count/DEBUG’: 5,
‘log_count/INFO’: 9,
‘response_received_count’: 5,
‘scheduler/dequeued’: 5,
‘scheduler/dequeued/memory’: 5,
‘scheduler/enqueued’: 5,
‘scheduler/enqueued/memory’: 5,
‘start_time’: datetime.datetime(2020, 3, 11, 10, 20, 12, 67624)}
2020-03-11 18:20:12 [scrapy.core.engine] INFO: Spider closed (finished)

Process finished with exit code 0