擅长:python、mysql、java
<p>尝试以下操作(不指定编码器,使用默认base64编码器):</p>
<pre><code>import email
from email.encoders import encode_noop
from email.generator import BytesGenerator
from email.mime.application import MIMEApplication
import io
app = MIMEApplication(b'Q\x0dQ')
b = io.BytesIO()
g = BytesGenerator(b)
g.flatten(app)
msg = email.message_from_bytes(b.getvalue())
assert msg.get_payload(decode=True) == b'Q\x0dQ'
</code></pre>