擅长:python、mysql、java
<p>列表索引的工作方式如下:</p>
<pre><code>>>> some_list=[['A001', 'A002'], ['A003', 'A004'], ['A005', 'A006']]
>>> some_list[0] # first sub list
['A001', 'A002']
>>> some_list[0][0] # first element in first sub list
'A001'
</code></pre>
<p>要获得所需的输出,请尝试以下操作:</p>
<pre><code>some_list=[['A001', 'A002'], ['A003', 'A004'], ['A005', 'A006']]
for sub in some_list:
print(sub)
for ele in sub:
print(ele)
</code></pre>
<p>输出:</p>
<pre><code>['A001', 'A002']
A001
A002
['A003', 'A004']
A003
A004
['A005', 'A006']
A005
A006
</code></pre>