擅长:python、mysql、java
<p>见<a href="https://docs.djangoproject.com/en/2.2/ref/exceptions/#objectdoesnotexist" rel="nofollow noreferrer">ObjectDoesNotExist</a></p>
<pre><code>try:
check = CampainHistory.objects.get(pk=campaign_id)
except CampainHistory.DoesNotExist:
# do something
</code></pre>