1 import urllib.request 2 from bs4 import BeautifulSoup 3 import re 4  5 def main(): 6     response= urllib.request.urlopen('http://baike.baidu.com/view/284853.htm').read() 7     soup = BeautifulSoup(response,'html.parser')#使用python默认的解析器 8     for each in soup.find_all(href = re.compile('view')): 9         print(each.text,'->',''.join(['http://baike.baidu.com/',each['href']]))#join函数明显比+提高10 if __name__=='__main__':11     main()