爬虫大作业

import requests
import re
import jieba
from bs4 import BeautifulSoup
from datetime import datetime


def getNewsDetail(newsUrl):
    resd = requests.get(newsUrl)
    resd.encoding = ‘gb2312‘
    soupd = BeautifulSoup(resd.text, ‘html.parser‘)

    content = soupd.select(‘#endText‘)[0].text
    info = soupd.select(‘.post_time_source‘)[0].text
    date = re.search(‘(\d{4}.\d{2}.\d{2}\s\d{2}.\d{2}.\d{2})‘, info).group(1)
    dateTime = datetime.strptime(date, ‘%Y-%m-%d %H:%M:%S‘)
    sources = re.search(‘来源:\s*(.*)‘, info).group(1)
    TopWords = getTopWords(content)
    print(‘发布时间：{0}\n来源：{1}‘.format(dateTime, sources))
    print(‘关键词：{}、{}、{}、{}、{}‘.format(TopWords[0], TopWords[1], TopWords[2],TopWords[3],TopWords[4]))
    print(content)
    print(‘---------------------------‘)
    fo = open("D:\pc/test.txt", ‘a‘, encoding=‘utf8‘)
    fo.write(content)
    fo.write(‘\n‘)
    fo.close()


def getTopWords(content):
    str = ‘‘‘一！“”，。？；’"‘,.、：\n‘‘‘
    for s in str:
        content=content.replace(s, ‘ ‘)
    wordlist = list(jieba.cut(content))
    exclude = {‘这‘, ‘\u3000‘, ‘\r‘, ‘\xa0‘,‘时候‘,‘对‘,‘上‘,‘与‘,‘等‘,‘不‘,‘‘,‘没有‘,‘很多‘,‘的‘,‘大‘,‘出来‘, ‘_‘, ‘到‘,‘ ‘, ‘将‘, ‘在‘, ‘是‘, ‘了‘, ‘一‘, ‘还‘, ‘也‘, ‘《‘, ‘》‘, ‘（‘, ‘）‘,‘和‘,‘我‘,‘我们‘,‘其‘,‘能够‘,‘以‘,‘个‘,‘短‘,‘中‘,‘是‘,‘不是‘}
    set2 = set(wordlist) - exclude
    dict = {}
    for key in set2:
        dict[key] = wordlist.count(key)
    dictlist = list(dict.items())
    dictlist.sort(key=lambda x: x[1], reverse=True)
    return dictlist;

def getListPage(listUrl):
    res = requests.get(listUrl)
    res.encoding = ‘gbk‘
    soup = BeautifulSoup(res.text, ‘html.parser‘)
    for new in soup.select(‘#news-flow-content‘)[0].select(‘li‘):
        url = new.select(‘a‘)[0][‘href‘]
        title = new.select(‘a‘)[0].text
        print(‘标题：{0}\n链接：{1}‘.format(title, url))
        getNewsDetail(url)
        break

listUrl = ‘http://tech.163.com/internet/‘
getListPage(listUrl)
for i in range(2, 10):
    listUrl = ‘http://tech.163.com/telecom/‘ % i
    getListPage(listUrl)