擅长:python、mysql、java
<p>您可以使用defaultdict显示多少次'!'为每个分数发生</p>
<pre class="lang-py prettyprint-override"><code>import csv
from collections import defaultdict
counter = defaultdict(int)
searchpm = '!'
with open('Reviews.csv', encoding='UTF-8') as f:
next(f) # for skip first row with headers
for line in csv.reader(f):
counter[str(line[0])] += line[1].count(searchpm)
print(counter)
</code></pre>