擅长:python、mysql、java
<pre><code>al = ["tr1", "tr2", "tr3"]
bl = ["tile1", "tile2", "tile3"]
newlist = [[a + b + "5" for b in bl] for a in al]
</code></pre>
<p>结果:</p>
<pre><code>[['tr1tile15', 'tr1tile25', 'tr1tile35'],
['tr2tile15', 'tr2tile25', 'tr2tile35'],
['tr3tile15', 'tr3tile25', 'tr3tile35']]
</code></pre>