p_node not defined
# coding:utf8
import re
from bs4 import BeautifulSoup
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, 'html.parser', from_encoding='utf-8')
print '获取所有的链接'
links = soup.find_all('a')
for link in links:
print link.name,link['href'],link.get_text()
print '获取lacie的链接'
link_node = soup.find('a',href='http://example.com/lacie')
print link_node.name,link_node['href'],link_node.get_text()
print '正则匹配'
link_node = soup.find('a',href=re.compile(r"ill"))
print link_node.name,link_node['href'],link_node.get_text()
print '获取P段落文字'
p__node = soup.find('p',class_ = "title")
print p_node.name,p_node.get_text()
