擅长:python、mysql、java
<p>可以将<a href="https://docs.python.org/3/library/csv.html#module-csv" rel="nofollow noreferrer">^{<cd1>}</a>模块与<code>delimiter=" "</code>一起使用:</p>
<pre><code>from csv import reader
with open('file.txt', 'r') as file:
csv_reader = reader(file, delimiter=" ")
for row in csv_reader:
row[0] = '??.??'
print(row)
</code></pre>
<p>哪些输出</p>
<pre><code>['??.??', '1:34', '2:49', '5:21', '29:98']
['??.??', '1:23', '2:82', '5:23', '29:45']
...
</code></pre>
<p>请注意,您的数字将是字符串。您可能需要将它们转换为浮点数:</p>
<pre><code>floats = [float(item) for item in row]
</code></pre>
<p>如果需要将更改写入文件,可以类似地使用<a href="https://docs.python.org/3/library/csv.html#csv.writer" rel="nofollow noreferrer">^{<cd3>}</a>。你知道吗</p>