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QusetionsPageSpider.py
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QusetionsPageSpider.py
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from urllib import request
from bs4 import BeautifulSoup
import re
link='https://www.zhihu.com/question/38478558'
def realTitle(title):
s=''
for c in title:
if c!='\n':
s+=c
return s
def PageSearch(link, topic=None):
webPage=request.urlopen(link).read()
soup=BeautifulSoup(webPage,'html5lib')
topicidSet=set()
if topic!=None:
for A in soup.find_all('a'):
if A.get('data-topicid'):
topicidSet.add(A.get('data-topicid'))
if topic not in topicidSet:
return []
fileName='linkFolder/'+link[-8:]+'.desktop'
file=open(fileName,'w')
text = '[Desktop Entry]\nEncoding=UTF-8\nName=' + realTitle(soup.title.string) + '\nType=Link\nURL=https://www.zhihu.com/question/'+link[-8:]+'\nIcon=text-html'
file.write(text)
search=re.compile(r'(?<=question/).*?(?=" data-id=)')
newLinks=[]
for item in search.findall(str(webPage)):
if(len(item)==8):
newLinks.append('https://www.zhihu.com/question/'+item)
return newLinks
alreadyDownload=set()
Links=[]
Links.append(link)
while True:
newLinks=[]
for item in Links:
if item not in alreadyDownload:
try:
newLinks+=PageSearch(item)
alreadyDownload.add(item)
except Exception as e:
continue
Links=newLinks
print(Links)