网页解析器和beautiful soup 实例测试

最新推荐文章于 2025-10-15 14:35:36 发布

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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 werree 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')
print("all link:")
links=soup.find_all('a')
for link in links:
    print(link.name,link['href'],link.get_text())

print("lacie's link:")
link_node=soup.find('a',href="http://example.com/lacie")
print(link_node.name,link_node['href'],link_node.get_text())

print("正则表达：")
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())
运行结果：

all link:
a http://example.com/elsie Elsie
a http://example.com/lacie Lacie
a http://example.com/tillie Tillie
lacie's link:
a http://example.com/lacie Lacie
正则表达：
a http://example.com/tillie Tillie
获取P段落文字
p The Dormouse's story