擅长:python、mysql、java
<p>嗯,功能优度(加上一点生成器表达式):</p>
<pre><code>a = "1,2,,3,4,"
print map(int, filter(None, (i.strip() for i in a.split(','))))
</code></pre>
<p>为了充分发挥功能:</p>
<pre><code>import string
a = "1,2,,3,4,"
print map(int, filter(None, map(string.strip, a.split(','))))
</code></pre>