Python BeautifulSoup：根据 class 获取元素

#Python BeautifulSoup

使用 find_all 获取 class 为 content 的 div 元素 - 基于 attrs 过滤

from bs4 import BeautifulSoup

html_content = '''
<div class="content">测试01</div>
<p class="content">测试02</p>
<div>测试03</div>
'''
soup = BeautifulSoup(html_content, 'html.parser')

for element in soup.find_all(name='div', attrs={'class': 'content'}):
    print('元素: ', element)

执行结果：

元素:  <div class="content">测试01</div>

使用 find_all 获取 class 为 content 的 div 元素 - 基于 class_ 过滤

from bs4 import BeautifulSoup

html_content = '''
<div class="content">测试01</div>
<p class="content">测试02</p>
<div>测试03</div>
'''
soup = BeautifulSoup(html_content, 'html.parser')

for element in soup.find_all(name='div', class_='content'):
    print('元素: ', element)

执行结果：

元素:  <div class="content">测试01</div>

使用 find_all 获取 class 为 content 的元素，不止 div

from bs4 import BeautifulSoup

html_content = '''
<div class="content">测试01</div>
<p class="content">测试02</p>
<div>测试03</div>
'''

soup = BeautifulSoup(html_content, 'html.parser')

for element in soup.find_all(class_='content'):
    print('元素: ', element)

执行结果：

元素:  <div class="content">测试01</div>
元素:  <p class="content">测试02</p>

使用 select 获取 class 为 content 的 div 元素

from bs4 import BeautifulSoup

html_content = '''
<div class="content">测试01</div>
<p class="content">测试02</p>
<div>测试03</div>
'''
soup = BeautifulSoup(html_content, 'html.parser')

for element in soup.select("div[class='content']"):
    print('元素: ', element)

执行结果：

元素:  <div class="content">测试01</div>

使用 select 获取 class 为 content 的元素，不止 div

from bs4 import BeautifulSoup

html_content = '''
<div class="content">测试01</div>
<p class="content">测试02</p>
<div>测试03</div>
'''
soup = BeautifulSoup(html_content, 'html.parser')

for element in soup.select(".content"):
    print('元素: ', element)

执行结果：

元素:  <div class="content">测试01</div>
元素:  <p class="content">测试02</p>

( 本文完 )