查找有条件的多个标签

Question

是否可以找到多个带有条件的标签？

<a href = "/img/something.jpg">
<img src= "/img/somethingelse.png">

我可以说

找到包含“ / img /”的所有“ a”和“ img”标签

Answer 1

是的，仅向find_all()方法提供函数（可以是lambda函数）：

data = """<a href = "/img/something.jpg">
<img src= "/img/somethingelse.png">"""

from bs4 import BeautifulSoup

soup = BeautifulSoup(data, 'lxml')

for tag in soup.body.find_all(lambda t: t.name in ('a', 'img') and \
                         ('href' in t.attrs and '/img/' in t['href']) or
                         ('src' in t.attrs and '/img/' in t['src'])):
    print(tag.name, tag.attrs)
    print('*' * 80)

输出：

a {'href': '/img/something.jpg'}
********************************************************************************
img {'src': '/img/somethingelse.png'}
********************************************************************************