擅长:python、mysql、java
<p>你的字典错了。如果昵称是唯一的,请将其用作密钥。你知道吗</p>
<pre><code>>>> nicknames = {
...: 'lebron james': ['king james', 'lbj'],
...: 'dwayne johnson': ['rocky', 'the rock', 'brahma bull']
...:}
>>>
>>> nicknames = {nick:real for real, lst in nicknames.items() for nick in lst}
>>> nicknames
{'brahma bull': 'dwayne johnson',
'king james': 'lebron james',
'lbj': 'lebron james',
'rocky': 'dwayne johnson',
'the rock': 'dwayne johnson'}
>>>
>>> nicknames['rocky']
'dwayne johnson'
</code></pre>