代码
from bs4 import BeautifulSoup
import lxml
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title"><b>The Dormouse's story</b></p>
<p class="story">Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" class="sister" id="link1">Elsie</a>,
<a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""
soup = BeautifulSoup(html_doc, 'lxml')
# print(soup.prettify())
print(soup.title)
print('---------------------------')
print(soup.title.string)
print('---------------------------')
print(soup.p)
print('---------------------------')
print(soup.p['class'])
print('---------------------------')
print(soup.find_all('a'))
print('---------------------------')
print(soup.find(id='link3'))
print('---------------------------')
for link in soup.find_all('a'):
print(link.get('href'))运行
