<pre><code>import csv
with open('thefile.csv', 'rb') as f:
data = list(csv.reader(f))
import collections
counter = collections.defaultdict(int)
for row in data:
counter[row[10]] += 1
with open('/pythonwork/thefile_subset11.csv', 'w') as outfile:
writer = csv.writer(outfile)
sample_cutoff=500
b[]
for row in data:
if counter[row[10]] >= sample_cutoff:
writer.writerow(row)
</code></pre>
<p>除了将数据写入文件之外,我还想将其<a href="https://www.cnpython.com/list/insert" class="inner-link">插入列表</a>b[]</p>
<p>我能做<code>b.insert[row]</code>吗?在</p>