Beautiful Soup - 抓取第一个指定标签后的字符串

发布于 2024-12-25 09:23:43 字数 544 浏览 0 评论 0原文

我试图在开始标记之后立即获取字符串。以下代码有效：

webpage = urlopen(i).read()
soup = BeautifulSoup(webpage)
for elem in soup('td', text=re.compile(".\.doc")):
    print elem.parent

当 html 如下所示时：

plan_49913.doc

但当 html 如下所示时无效：

plan_49913.doc< br/> 取代的文档： 2012 年 1 月

我尝试过使用 attrs 但无法让它工作。基本上我只想在 html 的任一实例中获取“plan_49913.doc”。

任何建议将不胜感激。

先感谢您。

〜克里斯克

原文

I'm trying to grab the string immediately after the opening <td> tag. The following code works:

webpage = urlopen(i).read()
soup = BeautifulSoup(webpage)
for elem in soup('td', text=re.compile(".\.doc")):
    print elem.parent

when the html looks like this:

<td>plan_49913.doc</td>

but not when the html looks like this:

<td>plan_49913.doc<br /> <font color="#990000">Document superseded by: </font><a href="/plans/Jan_2012.html">January 2012</a></td>

I've tried playing with attrs but can't get it to work. Basically I just want to grab 'plan_49913.doc' in either instance of html.

Any advice would be greatly appreciated.

Thank you in advance.

~chrisK

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

孤城病女 2025-01-01 09:23:43

这对我有用：

>>> html = '<td>plan_49913.doc<br /> <font color="#990000">Document superseded by:  </font><a href="/plans/Jan_2012.html">January 2012</a></td>'
>>> soup = BeautifulSoup(html)
>>> soup.find(text=re.compile('.\.doc'))
u'plan_49913.doc

我缺少什么吗？

另请注意，根据文档：

如果您使用文本，则您为名称和关键字参数提供的任何值都将被忽略。

因此，您不需要传递 'td' 因为它已经被忽略，也就是说，将返回与任何其他标记下匹配的任何文本。

This works for me:

>>> html = '<td>plan_49913.doc<br /> <font color="#990000">Document superseded by:  </font><a href="/plans/Jan_2012.html">January 2012</a></td>'
>>> soup = BeautifulSoup(html)
>>> soup.find(text=re.compile('.\.doc'))
u'plan_49913.doc

Is there something I'm missing?

Also, note that according to the documentation:

If you use text, then any values you give for name and the keyword arguments are ignored.

So you don't need to pass 'td' since it's already being ignored, that is, any text that matches under any other tag will be returned.

回复收藏 0 原文

旧情别恋 2025-01-01 09:23:43

只需使用 next 属性，它包含下一个节点，这是一个文本节点。

>>> html = '<td>plan_49913.doc<br /> <font color="#990000">Document superseded by:  </font><a href="/plans/Jan_2012.html">January 2012</a></td>'
>>> bs = BeautifulSoup(html)
>>> texts = [ node.next for node in bs.findAll('td') if node.next.endswith('.doc') ]
>>> texts
[u'plan_49913.doc']

如果您愿意，可以更改 if 子句以使用正则表达式。

Just use the next property, it contains the next node, and that's a textual node.

>>> html = '<td>plan_49913.doc<br /> <font color="#990000">Document superseded by:  </font><a href="/plans/Jan_2012.html">January 2012</a></td>'
>>> bs = BeautifulSoup(html)
>>> texts = [ node.next for node in bs.findAll('td') if node.next.endswith('.doc') ]
>>> texts
[u'plan_49913.doc']

you can change the if clause to use a regex if you prefer.

回复收藏 0 原文

~没有更多了~