擅长:python、mysql、java
<p>您可以使用以下方法展平列表:</p>
<pre class="lang-py prettyprint-override"><code>matrix = [[12,21], [32,42],[55,67]]
flatten_matrix = [val for sublist in matrix for val in sublist]
print(flatten_matrix)
>>> [12, 21, 32, 42, 55, 67]
</code></pre>
<p>然后用以下命令将其写入<code>csv</code>:</p>
<pre class="lang-py prettyprint-override"><code>with open(somefile, 'w') as csvfile:
InfoWrite = csv.writer(csvfile, delimiter=',')
row_no = 'row-no'
InfoWrite.writerow([row_no,'A','B','C','D','E','F'])
InfoWrite.writerow([row_no] + flatten_matrix)
</code></pre>