Beautiful Soup 关联选择中的父节点和祖先节点、兄弟节点、提取信息

最新推荐文章于 2021-11-18 21:32:44 发布

663的腿毛

最新推荐文章于 2021-11-18 21:32:44 发布

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文章标签： python 爬虫 beautiful Soup

本文链接：https://blog.youkuaiyun.com/qq_42732153/article/details/81105725

Python 用Beautiful Soup解析选择的节点元素
# 子节点和子孙节点
html = """
<html>
<head>
<title>The Dormouse's story</title>
</head>
<body>
<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">
<span>Elsie</span>
</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>
"""

from bs4 import BeautifulSoup
soup = BeautifulSoup(html, 'lxml')
print(soup.p.contents)
print(soup.p.children)
for i, child in enumerate(soup.p.children, start=1):
    print(i, child)

#所有的子孙节点
print(soup.p.descendants)
for i, child in enumerate(soup.p.descendants, start=1):
    print(i, child)

print（’----------------------------------------------‘—)
# 父节点和祖先