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g SVMS with Various Feature Selection Strategies》 |
9、二二si- |
14 |
深度学习来做 |
自动问答的一般方法 www. shareditor. com |
{ |
"cells": [ |
{ |
"cell_type": "code , |
"execution_count": 5, |
"metadata'": 修, |
"outputs": [], |
"source'": [ |
"import requests;N\n', |
"from bs4 import BeautifulSoupNn'", |
"n", |
中定义获取豆瓣影评数据的方法\n", |
"def getComment(urlh,commentListj:N\n |
” ,”粗.1---添加请求头为了伪装的更像)nv, |
本 header={f\n', |
NUser-Agent\':\"Mozilla/5.0 (Windows NT 10.0; Win64; x64) |
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36\"\n'", |
”jn |
” ,折.2---发请求,获取响应\n", |
response = requests.get(url=url,headers = header))\n', |
闪 #1.3---使用 bs4 跟 html5lib 解析网页内容\n", |
if(response.status_code==200):\n'", |
soup = BeautifulSoup(response.content\"html5lib\"))Nn', |
" #1.4---获取所有存放评论区域的 divclass=\"mod-hdNwn'", |
commentltemList = Soup.find_all(\"divN'attrs={\"classN':N\comment-itemN"})Nn' |
" 拉.5---遍历列表,获取每一个评论的作者、打分和正文\n", |
for commentltem in commentltemList:Nn'", |
" #1.6---获取存放作者、打分、评论正文的 divclass=\commentN'\n', |
comment = commentltem.find(N\"divN"attrs={\"classN:\ commentN'))Nn |
训 #1.7---获取存放作者、打分的 divclass=N\"comment-infoN'\n', |
commentinfo |
comment.find(\"spanN'"attrs={\"classN\':\comment-infoN\"})Nn', |
" 拉.8---获取作者名字 ”None\n'", |
author = commentlnfo.find(\"aN").text;N\n', |
" 拉1.9---获取打分“因为豆准机制中是可以不打分的\nv, |
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