擅长:python、mysql、java
<p>您可以使用反向引用来执行此操作:</p>
<pre><code>(.)\1
</code></pre>
<p>这将匹配任何字符的连续出现。</p>
<hr/>
<p><strong>编辑</strong>下面是一些Python示例:</p>
<pre><code>import re
regexp = re.compile(r"(.)\1")
data = ["parrot","follia","carrot","mattia","rettoo","melone"]
for str in data:
match = re.search(regexp, str)
if match:
print str, "<- match for double", match.group(1)
else:
print str, "<- doesn't match"
</code></pre>