擅长:python、mysql、java
<p>尝试使用<code>center</code>:</p>
<pre><code>list_a = [['face1', 'face2', 'object', 'scene'], ['1', '7', '6', '5'], ['4', '3', '2', '8'], ['1', '3', '2', '4'],
['1', '2', '3', '4']]
for item in list_a:
for subitem in item:
print(subitem.center(10), end='')
print()
</code></pre>
<p>输出:</p>
<pre><code> face1 face2 object scene
1 7 6 5
4 3 2 8
1 3 2 4
1 2 3 4
</code></pre>
<p>注意:如果您的列表中包含字符串以外的值,请不要忘记在对其调用<code>.center</code>之前将其转换为字符串:</p>
<pre><code>print(str(subitem).center(10), end='')
</code></pre>