擅长:python、mysql、java
<p>您可能会丢失这样一个for循环:(x是您的列表)</p>
<pre><code>output = []
for pair in x:
if pair != ['', '']:
output.append(pair)
else:
break # Breaking as soon as there is an empty pair.
</code></pre>
<p>输出为:</p>
<pre><code>[['9743', 'user3'], ['435', 'user2'], ['5426', 'user8']]
</code></pre>