擅长:python、mysql、java
<p>我的尝试:</p>
<pre><code>dictionary = {'apple': 'ams2.dfgsdfgsdfg', 'orange': 'bru1.asdfartq', 'grape': 'cph.dfsdfgsdgsdf', 'banana': 'ams4.ewrtwerth'}
duplicate_keys = set()
for k1, v1 in dictionary.items():
for k2, v2 in dictionary.items():
if k1 == k2:
continue
if v1[:3] == v2[:3]:
duplicate_keys.add(k1)
duplicate_keys.add(k2)
print(list(duplicate_keys))
</code></pre>
<p>输出:</p>
<pre><code>['apple', 'banana']
</code></pre>