Python使用requests及BeautifulSoup构建爬虫实例代码

pip install requests

pip install python/267323.html">beautifulsoup4

__author__ = 'Qian Yang'# -*- coding:utf-8 -*-import requestsfrom bs4 import BeautifulSoupdef get_one_page(url):  response= requests.get(url)  if response.status_code == 200:    return response.content.decode("utf8","ignore").encode("gbk","ignore")#采用BeautifulSoup解析def bs4_paraser(html):  all_value = []  value = {}  soup = BeautifulSoup(html,'html.parser')  # 获取每一个电影  all_div_item = soup.find_all('div', attrs={'class': 'movie-item-info'})  for r in all_div_item:    # 获取电影的名称和url    movie_url = r.find_all('p', attrs={'class': 'name'})[0].a['href']    value['title'] = title    value['movie_url'] = movie_url    all_value.append(value)    value = {}  return all_valuedef main():  url = 'http://maoyan.com/board/4'  html = get_one_page(url)  all_value = bs4_paraser(html)  print(all_value)if __name__ == '__main__':  main()