import?requests
from?lxml?import?etree

headers?=?{
????‘User-Agent‘:?‘Mozilla/5.0?（Windows?NT?10.0;?Win64;?x64）?AppleWebKit/537.36?（KHTML?like?Gecko）?Chrome/73.0.3683.103?Safari/537.36‘
????‘Host‘:?‘movie.douban.com‘
}

def?get_one_page（base_url）:
????for?i?in?range（10）:
????????url=base_url+str（i*25）#
????????response=requests.get（url?headers=headers）
????????html=etree.HTML（response.content）
????????items?=?html.xpath（‘//ol/li/div[@class=“item“]‘）
????????for?item?in?items:
????????????try:
????????????????rank=item.xpath（‘./div[@class=“pic“]/em/text（）‘）#提取電影的排名
????????????????title=item.