擅长:python、mysql、java
<p>这可以用<a href="https://docs.python.org/3/library/functions.html#sum" rel="nofollow noreferrer">^{<cd1>}</a>、<a href="https://docs.python.org/3/library/functions.html#zip" rel="nofollow noreferrer">^{<cd2>}</a>和<a href="https://docs.python.org/3/tutorial/datastructures.html#list-comprehensions" rel="nofollow noreferrer">list comprehension</a>来完成,比如:</p>
<h3>代码:</h3>
<pre><code>c = sum([[s] * n for s, n in zip(a, b)], [])
</code></pre>
<h3>测试代码:</h3>
^{pr2}$
<h3>结果:</h3>
<pre><code>['a', 'a', 'a', 'e', 'e', 'y']
</code></pre>