Question

我想找到所有带有class =＆＃34的div标签;将某些数字发布到某些文本＆＃34; 有多个div标签，例如。

<div class="post-3562 some text">
<div class="post-some text">
<div class="post-some text">
<div class="post-1324 some text">
<div class="post-4540 some text">
<div class="post-some text">
<div class="post-1122 some text">

我只想获得带有class =＆＃34; div-some number＆＃34;

的div标签

目前我写的是：

allPostsDiv = soup.find_all("div", class_= "post")

有没有办法实现我想做的事情？可能使用正则表达式会有帮助吗？任何帮助将不胜感激。

Answer 1

您可以将正则表达式作为class_参数的值传递，如下所示：

soup.find_all(name='div', class_=re.compile(r'^post-\d+$'))

完整计划：

from bs4 import BeautifulSoup
import re

soup = BeautifulSoup('''
<root>
<div class="post-3562 some text"/>
<xdiv class="post-9999 some text"/>
<div class="post-some text"/>
<div class="post-some text"/>
<div class="post-1324some text"/>
<div class="some post-4540 text"/>
<div class="post-some text"/>
<div class="some text post-1122"/>
</root>''', 'html.parser')

for div in soup.find_all(name='div', class_=re.compile(r'^post-\d+$')):
    print div

结果：

<div class="post-3562 some text"></div>
<div class="some post-4540 text"></div>
<div class="some text post-1122"></div>

Answer 2

以下正则表达式将匹配您的测试用例：

/<div +class= *"post-\d+.*>/g

Regex Tester链接：https://regex101.com/r/cX1qZ7/1

找到所有div标签find class =＆＃34; post - ＆＃34;接下来是一些数字？

2 个答案: