擅长:python、mysql、java
<p>这个怎么样?在</p>
<pre><code>char_count = 3 # Or whatever you want
if len(A) >= char_count and len(B) >= char_count :
for i in range(0, len(A) - char_count + 1):
some_chars = A[i:i+char_count]
if some_chars in B:
# Huray!
</code></pre>