擅长:python、mysql、java
<p>您可能需要扩展您所说的“<em>交叉点</em>”,但请尝试以下操作:</p>
<pre><code>words = [w.strip().lower() for w in open("a7.txt").read().splitlines()]
word_dict = {}
for word in words:
if word[0] in word_dict:
word_dict[word[0]].append(word)
else:
word_dict[word[0]] = [word]
wordFind = raw_input("Enter word: ").strip().lower()
print '\n'.join(word_dict[wordFind[0]])
</code></pre>