如何用BeautifulSoup从嵌套div和span标签的HTML中提取表格数据？

<code class="python">from bs4 import BeautifulSoup
import pandas as pd

html = """
<div class="all hs_list" id="articlelistnew">
    <div class="dheader">
        <span>阅读</span><span>评论</span><span>标题</span>
        <span>作者</span>
                            <span>最后更新</span>
    </div>
    <div class="articleh normal_post">
        <span>471</span>
        <span>2</span>
        <span>...</span>
        <span>...</span>
        <span>09-12 00:09</span>
    </div>
    <div class="articleh normal_post">
        <span>603</span>
        <span>3</span>
        <span>...</span>
        <span>...</span>
        <span>09-11 16:01</span>
   </div>
</div>
"""

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

# 获取表头
headers = [th.text.strip() for th in soup.select("div.dheader span")]

# 获取表格数据行
rows = [[td.text.strip() for td in row.select("span")] for row in soup.select("div.articleh")]

# 创建Pandas DataFrame
df = pd.DataFrame(rows, columns=headers)

# 打印DataFrame
print(df)</code>