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最新推荐文章于 2022-08-21 17:30:31 发布

原创最新推荐文章于 2022-08-21 17:30:31 发布 · 513 阅读

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本文介绍了如何使用Python的BeautifulSoup库解析HTML文档，提取所需的数据。通过实例展示了获取页面中的所有链接、特定链接及段落文字的方法。

# coding:utf8

from bs4 import BeautifulSoup
import re

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 u'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 u'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 u'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 u'获取P段落文字'
p_node = soup.find('p',class_="title")
print p_node.name,p_node.get_text()