擅长:python、mysql、java
<p>当我指定<code>tr</code>标记名时,您的方法实际上对我有效:</p>
<pre><code>>>> from bs4 import BeautifulSoup
>>> data = """
... <tbody>
... <tr class data-row="0">
... <td align="right"></td>
... </tr>
... <tr class data-row="1">
... <td align="right"></td>
... </tr>
... <tr class="thead over_theader" data-row="2">
... <td align="right"></td>
... </tr>
... <tr class="thead" data-row="3">
... <td align="right"></td>
... </tr>
... <tr class data-row="4">
... <td align="right"></td>
... </tr>
... <tr class data-row="5">
... <td align="right"></td>
... </tr>
... </tbody>
... """
>>> soup = BeautifulSoup(data, "html.parser")
>>> len(soup.find_all("tr", class_=""))
4
</code></pre>
<p>{{cd2}也可以使用{cd2}:</p>
^{pr2}$