擅长:python、mysql、java
<p>尝试:</p>
<pre><code>from collections import defaultdict
dict_of_words = defaultdict(list)
for word in list_of_words:
dict_of_words[word[1:-1]].append(word)
</code></pre>
<p>然后,要写入输出文件:</p>
<pre><code>with open('outfile.txt', 'w') as f:
for key in dict_of_words:
f.write('\n'.join(dict_of_words[key])
f.write('\n' )
</code></pre>