擅长:python、mysql、java
<p>这应该能做到:</p>
<pre><code>import re
str = 'Explorer II Ref.16570 Box'
m = re.match('Ref\.[0-9]+', str)
if m:
print(m.group(0)[4:])
</code></pre>
<p>更多信息:</p>
<ul>
<li><a href="https://docs.python.org/3/library/re.html#re.search" rel="nofollow noreferrer">https://docs.python.org/3/library/re.html#re.search</a></li>
<li><a href="https://docs.python.org/3/library/re.html#match-objects" rel="nofollow noreferrer">https://docs.python.org/3/library/re.html#match-objects</a></li>
</ul>