擅长:python、mysql、java
<p><strong>纯<code>Python</code>溶液:</strong></p>
<p>您可以在<code>list-comprehension</code>和<code>string</code><code>concatenation</code>中使用<code>nested</code><code>for-loops</code>来执行此操作:</p>
<pre><code>[u + f for u in usersArray for f in foodsArray]
</code></pre>
<p>它给出:</p>
<pre><code>['Johnhamburger', 'Johncake', 'Johncheese', 'Mikehamburger', 'Mikecake', 'Mikecheese', 'Roberthamburger', 'Robertcake', 'Robertcheese', 'Tomhamburger', 'Tomcake', 'Tomcheese']
</code></pre>
<hr/>
<pre><code>[f + u for u in usersArray for f in foodsArray]
</code></pre>
<p>它给出:</p>
<pre><code>['hamburgerJohn', 'cakeJohn', 'cheeseJohn', 'hamburgerMike', 'cakeMike', 'cheeseMike', 'hamburgerRobert', 'cakeRobert', 'cheeseRobert', 'hamburgerTom', 'cakeTom', 'cheeseTom']
</code></pre>