擅长:python、mysql、java
<p>不完全确定是否需要<code>match</code>或<code>extract</code>,但<code>Ref\.?([ \d.]+)</code>将提取<code>Ref</code>之后的任何数字(不区分大小写),即:</p>
<pre><code>import re
result = re.findall(r"Ref\.?([ \d.]+)", subject, re.IGNORECASE | re.MULTILINE)
</code></pre>
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^{pr2}$
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<p><a href="https://regex101.com/r/SFasuC/3" rel="nofollow noreferrer">Regex Demo</a><br/>
<a href="https://www.jdoodle.com/embed/v0/Qtg" rel="nofollow noreferrer">Python Demo</a></p>
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<p><strong>正则表达式解释</strong><br/>
<a href="https://i.stack.imgur.com/EXn3e.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EXn3e.jpg" alt="enter image description here"/></a></p>