擅长:python、mysql、java
<p>如果我正确理解了您的问题,您可以像这样使用<code>set</code></p>
<pre><code> def check_duplicates(voteString):
if len(set(voteString)) != len(voteString):
print(f"there is (are) duplicate(s) in {voteString }")
else:
print(f"there is (are) no duplicate(s) in {voteString }")
</code></pre>
<p>检查:</p>
<pre><code>check_duplicates('2341')
check_duplicates('2334')
</code></pre>
<blockquote>
<p>there is (are) no duplicate(s) in 2341</p>
</blockquote>
<blockquote>
<p>there is (are) duplicate(s) in 2334</p>
</blockquote>