.contents 和 .children

tag的.contents属性可以将tag的子节点以列表的方式输出:

head_tag = soup.head
head_tag
# <head><title>The Dormouse's story</title></head>

head_tag.contents
[<title>The Dormouse's story</title>]

title_tag = head_tag.contents[0]
title_tag
# <title>The Dormouse's story</title>
title_tag.contents
# [u'The Dormouse's story']

BeautifulSoup对象本身一定会包含子节点,也就是说<html>标签也是BeautifulSoup对象的子节点:

len(soup.contents)
# 1
soup.contents[0].name
# u'html'

字符串没有.contents属性,因为字符串没有子节点:

text = title_tag.contents[0]
text.contents
# AttributeError: 'NavigableString' object has no attribute 'contents'

通过tag的.children生成器,可以对tag的子节点进行循环:

for child in title_tag.children:
    print(child)
    # The Dormouse's story

Previoustag的名字 Next.descendants

Last updated 6 years ago