Pythonを利用して募集情報を取得します。前編

どのようにしてウェブサイトの関連情報を取得し、招聘情報を収集しますか？

import re
import urllib
import urllib.request
#       
def begin(url):
  #        (      chrome)
  headers = ('User-Agent','Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36')
  opener = urllib.request.build_opener()
  #               http  
  opener.addheaders=[headers]
  #     url
  data = opener.open(url).read()
  #    html   utf-8
  data=data.decode('utf-8')
  return data
#    ，           url
def get_cityinfo(data):
  city_info1=re.findall(r'dl>(.*?)</dl>',data,re.S)
  city_info2=re.findall(r'(<a.*?</a>)',city_info1[0],re.S)
  city_dict={}
  for each in city_info2:
    key=re.findall('>(.*?)</',each,re.S)
    city_url=re.findall('href="(.*?)"',each,re.S)
    city_dict[key[0]]=city_url[0]
  return city_dict
#     a  ，  a       
def a_info(data):
  a_info=re.findall(r'(<a.*?</a>)',data[0],re.S)
  a_dict={}
  for each in a_info:
    key=re.findall('>(.*?)</',each,re.S)
    a_url=re.findall('"(.*?)"',each,re.S)
    a_dict[key[0]]=a_url[0]
  return a_dict
#             
def get_cityinfoclass():
    #         ，                
  info= 'zhaopin/'
  return info
#               
def getzhaopin(city_info,infoclass):
  #         
  city_url=city_info['  ']
  cdzp_url=city_url+infoclass
  cdzp_info=begin(cdzp_url)
  return city_url,cdzp_info
#         
def get_zhaopin_info(city_url,cdzp_info):
  allzp_info=re.findall('class="f-all-news"(.*?)</div>',cdzp_info,re.S)
  a_dict={}
  class_info=re.findall('<dd>(.*?)</dd>',allzp_info[0],re.S)
  for each in class_info:
    a_info=re.findall(r'(<a.*?</a>)',each,re.S)
    for each1 in a_info:
      key=re.findall('>(.*?)</',each1,re.S)
      a_url=re.findall('href="/(.*?)"',each1,re.S)
      a_dict[key[0].strip()]=city_url+a_url[0]
  return a_dict
#           
def get_city_zpinfo_detail(url):
  #        
  sorft_engineer=(zp_class_info['     '])
  job_url_info=begin(sorft_engineer)
  get_detail_info(job_url_info)
#        
def get_detail_info(list_info):
  job_info=re.findall('<dl class="list-noimg job-list clearfix"(.*?)</dl',list_info,re.S)
  print(job_info[0])
if __name__=='__main__':
  url='http://www.ganji.com/index.htm';
  data=begin(url);
  #      
  city_info=get_cityinfo(data)
  #     
  infoclass=get_cityinfoclass()
  cdzp_url,xiaoshou=getzhaopin(city_info,infoclass)
  #         
  zp_class_info=get_zhaopin_info(cdzp_url,xiaoshou)
  get_city_zpinfo_detail(zp_class_info)

以上が本文の全部です。皆さんの勉強に役に立ちたいです。