擅长:python、mysql、java
<p>一个通用的解决方案可能是将<code>re.findall</code>与模式<code>(\S)\1{3,}</code>一起使用:</p>
<pre class="lang-py prettyprint-override"><code>myString = "I contain foooour O's in a row without any space"
matches = re.findall(r'((\S)\2{3,})', myString)
print(matches[0][0])
</code></pre>
<p>这张照片是:</p>
<pre><code>oooo
</code></pre>