Beautiful Soup - contents 属性

方法描述

contents 属性可用于 Soup 对象和 Tag 对象。它返回对象内部的所有内容，所有直接子元素和文本节点（即 Navigable String）的列表。

语法

Tag.contents

返回值

contents 属性返回 Tag/Soup 对象中子元素和字符串的列表。

示例 1

标签对象的 contents −

from bs4 import BeautifulSoup

markup = '''
   <div id="Languages">
      <p>Java</p>
      <p>Python</p>
      <p>C++</p>
   </div>
'''
soup = BeautifulSoup(markup, 'html.parser')

tag = soup.div
print (tag.contents)

输出

['\n', <p>Java</p>, '\n', <p>Python</p>, '\n', <p>C++</p>, '\n']

示例 2

整个文档的 contents −

from bs4 import BeautifulSoup, NavigableString

markup = '''
   <div id="Languages">
      <p>Java</p> <p>Python</p> <p>C++</p>
   </div>
'''
soup = BeautifulSoup(markup, 'html.parser')

print (soup.contents)

输出

['\n', <div id="Languages">
<p>Java</p> <p>Python</p> <p>C++</p>
</div>, '\n']

示例 3

请注意，NavigableString 对象没有 contents 属性。如果尝试访问它，则会引发 AttributeError。

from bs4 import BeautifulSoup, NavigableString

markup = '''
   <div id="Languages">
      <p>Java</p> <p>Python</p> <p>C++</p>
   </div>
'''
soup = BeautifulSoup(markup, 'html.parser')
tag = soup.p
s=tag.contents[0]
print (s.contents)

输出

Traceback (most recent call last):
  File "C:\Users\user\BeautifulSoup\2.py", line 11, in <module>
    print (s.contents)
           ^^^^^^^^^^
  File "C:\Users\user\BeautifulSoup\Lib\site-packages\bs4\element.py", line 984, in __getattr__
    raise AttributeError(
AttributeError: 'NavigableString' object has no attribute 'contents'