<p>您可以在对<a href="http://www.crummy.com/software/BeautifulSoup/bs4/doc/#find-all" rel="nofollow">^{<cd1>}</a>的调用中传递一个<a href="http://www.crummy.com/software/BeautifulSoup/bs4/doc/#a-regular-expression" rel="nofollow">regular expression</a>对象</p>
<pre><code>import re
import bs4
html = '''
<td class="m" id="b1"><a href="/QSYcfT" id="c1" target="_blank" onClick="vPI('https://www.youtube.com/watch?v=BFNH-6K10Ic', 'QSYcfT', this.id); this.blur(); return false;">TF4 - Oreos</a> <a href="#" onClick="return lkP('1', 'QSYcfT');" id="x1"><font class="bp">(0)</font></a>
<td class="m" id="b2"><a href="/zXHNvp" id="c2" target="_blank" onClick="vPI('https://www.youtube.com/watch?v=0vjcGwZGBYI', 'zXHNvp', this.id); this.blur(); return false;">Awesome Game Boy Facts</a> <a href="#" onClick="return lkP('2', 'zXHNvp');" id="x2"><font class="bp">(0)</font></a>
'''
soup = bs4.BeautifulSoup(html)
for links in soup.find_all('a', {'id' : re.compile('^c') }):
print ''.join(links.find_all(text=True))
</code></pre>
<p>输出</p>
^{pr2}$