擅长:python、mysql、java
<p>如果您确定有<code>['','']</code>,请尝试以下操作:</p>
<pre><code>lst = [[ "9743", "user3"],[ "435","user2"],["5426","user8"],["",""],["9743","user9"]]
lst[:lst.index(['',''])]
# Output
# [['9743', 'user3'], ['435', 'user2'], ['5426', 'user8']]
</code></pre>
<p>如果您不确定是否有<code>['','']</code>,请尝试以下方法:</p>
<pre><code>lst = [[ "9743", "user3"],[ "435","user2"],["5426","user8"],["9743","user9"]]
try:
out = lst[:lst.index(['',''])]
except ValueError:
out = lst
</code></pre>
<p>输出:</p>
<pre><code>[['9743', 'user3'], ['435', 'user2'], ['5426', 'user8'], ['9743', 'user9']]
</code></pre>