输入城市的拼音，就能爬取大众点评上面该城市酒店的信息，将数据写入 csv 文件。
不完善点：
只能输入拼音，当然可以下载第三方库pinyin进行转换。未对输入的城市进行判断 。
代码如下：
import requestsfrom lxml import etreeimport csvimport reclass DPHotel():def __init__(self,city):self.city = cityself.base_url = "/{city}/hotel/n10p{page}"self.headers = {"User-Agent":r"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36" }self.page = int(self.get_response().xpath('//div[@class="page"]//a[@rel="nofollow"]//text()')[-2])self.writer = self.create_file()def get_response(self,page=1):response = requests.get(self.base_url.format(city=self.city,page=page), headers=self.headers).textresponse = etree.HTML(response)return responsedef create_file(self):file = open('{city}.csv'.format(city=self.city),'w',newline='')fieldnames = ['name','bottom-price','rank','place','tags']writer = csv.DictWriter(file,fieldnames=fieldnames)writer.writeheader()return writerdef get_info(self):for page in range(1,self.page+1):response = self.get_response(page)data = response.xpath('//div[@class="list-wrapper"]//div[@class="content"]//ul[@class="hotelshop-list"]//li[@class="hotel-block"]')for hotel in data:info={}info['name'] = hotel.xpath('.//div[1]//div[1]//h2//a[1]/text()')[0]info['place'] = ''.join(hotel.xpath('.//p[@class="place"]//text()')).strip()info['tags'] = '、'.join(hotel.xpath('.//p[@class="hotel-tags"]//text()'))info['bottom-price'] = hotel.xpath('.//div[@class="price"]/p//text()')[2]info['rank'] = '.'.join(re.findall('[0-9]+',hotel.xpath('.//div[@class="item-rank-ctn"]/span/@class')[0])[0])self.writer.writerow(info)if __name__ == '__main__':city = input('请输入要爬取的城市(拼音)： ')hotel = DPHotel(city)hotel.get_info()
ps:代码比较简单，没有写注释
