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beautifulSoup_select.py
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beautifulSoup_select.py
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from bs4 import BeautifulSoup
html = """
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<meta content="always" name="referrer">
<meta name="theme-color" content="#2932e1">
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />
<link rel="icon" sizes="any" mask href="//www.baidu.com/img/baidu_85beaf5496f291521eb75ba38eacbd87.svg">
<link rel="search" type="application/opensearchdescription+xml" href="/content-search.xml" title="百度搜索" />
<p>hello world</p>
<h1>
<a>woshia</a>
</h1>
"""
soup = BeautifulSoup(html,'lxml')
#选择元素
print(soup.link)
#获取标签的名称
print(soup.meta.name)
#获取属性
print(soup.link.attrs['rel'])
print(soup.link['rel'])
#获取内容
print(soup.p.string)
#嵌套选择
print(soup.h1.a.string)
#子节点和子孙节点
print(soup.h1.contents)
for i,child in enumerate(soup.p.children):
print(i,child)
#父节点和祖先节点
print(soup.p.parent)
for i,parent in enumerate(soup.p.parents):
print(i,parent)
#兄弟节点
print(list(enumerate(soup.link.next_siblings)))
print(list(enumerate(soup.link.previous_siblings)))