擅长:python、mysql、java
<p>对。您可以使用<a href="https://docs.python.org/3/library/typing.html#typing.Union" rel="nofollow noreferrer">Union</a></p>
<p>范例</p>
<pre><code>def send_email(address: Union[str, List[str]],
sender: str,
cc: Optional[List[str]],
bcc: Optional[List[str]],
subject='',
body: Optional[List[str]] = None
) -> bool:
</code></pre>