擅长:python、mysql、java
<p>您可以使用<code>StringIO</code>作为<code>retrlines</code><code>RETR</code>的缓冲区:</p>
<pre><code>import io
with io.StringIO() as buffer_io:
ftp.retrlines(f'RETR {filename}', buffer_io.write)
content = buffer_io.getvalue()
</code></pre>