回答此问题可获得 20 贡献值,回答如果被采纳可获得 50 分。
<p>我有以下清单:</p>
<pre><code>a = [['628', 'facial-expressions_2868588k.jpg', 'anger', '2'], ['628', 'facial-expressions_2868585k.jpg', 'surprise', '5'], ['628', 'facial-expressions_2868584k.jpg', 'disgust', '6'], ['628', 'facial-expressions_2868582k.jpg', 'fear', '4'], ['dwdii', 'Aaron_Eckhart_0001.jpg', 'neutral', '3'], ['302', 'Aaron_Guiel_0001.jpg', 'happiness', '1'], ['302', 'Aaron_Patterson_0001.jpg', 'neutral', '3'], ['302', 'Aaron_Peirsol_0001.jpg', 'happiness', '1'], ['302', 'Aaron_Peirsol_0002.jpg', 'happiness', '1'], ['302', 'Aaron_Peirsol_0003.jpg', 'happiness', '1'], ['302', 'Aaron_Peirsol_0004.jpg', 'neutral', '3'], ['302', 'Aaron_Pena_0001.jpg', 'neutral', '3']]
</code></pre>
<p>我想在此列表的索引中追加/添加值。
假设我想将<code>'hi'</code>附加到此列表的第一个索引以获得以下内容:</p>
<pre><code>a = [['628', 'facial-expressions_2868588k.jpg', 'anger', '2', 'hi'], ['628', 'facial-expressions_2868585k.jpg', 'surprise', '5'], ['628', 'facial-expressions_2868584k.jpg', 'disgust', '6'], ['628', 'facial-expressions_2868582k.jpg', 'fear', '4'], ['dwdii', 'Aaron_Eckhart_0001.jpg', 'neutral', '3'], ['302', 'Aaron_Guiel_0001.jpg', 'happiness', '1'], ['302', 'Aaron_Patterson_0001.jpg', 'neutral', '3'], ['302', 'Aaron_Peirsol_0001.jpg', 'happiness', '1'], ['302', 'Aaron_Peirsol_0002.jpg', 'happiness', '1'], ['302', 'Aaron_Peirsol_0003.jpg', 'happiness', '1'], ['302', 'Aaron_Peirsol_0004.jpg', 'neutral', '3'], ['302', 'Aaron_Pena_0001.jpg', 'neutral', '3']]
</code></pre>
<p>我该怎么做</p>