python - beautifulsoup - 查找 div 中的所有 li

Question

假设我有 html 代码

<li> ... </li>
<li> ... </li>
<div class="one">
    <ul class = "two">
        <li> ... </li>
        <li> ... </li>
        <li> ... </li>
        <li> ... </li>
    </ul>
</div>

如何找到 div 标签中的所有 li 属性，而不是 div 标签之外的属性？

data = soup.find_all("div", {"class": "one"}).find_all("li") 

但这不起作用

Answer 1

Beautiful Soup supports the most commonly-used CSS selectors. Just pass a string into the .select method

In [25]: soup = BS("""<li> ... </li>
<li> ... </li>
<div class="one">
    <ul class = "two">
        <li> ... </li>
        <li> ... </li>
        <li> ... </li>
        <li> ... </li>
    </ul>
</div>""")

In [26]: soup.select("div  ul")
Out[26]: 
[<ul class="two">
 <li> ... </li>
 <li> ... </li>
 <li> ... </li>
 <li> ... </li>
 </ul>]