擅长:python、mysql、java
<p>只需捕获<code>Post.DoesNotExist</code>异常并在异常处理程序中执行其他操作:</p>
<pre><code>def check(request):
if request.is_ajax():
id = request.POST.get('id')
try:
post = Post.objects.get(hash=id)
# do stuff
except Post.DoesNotExist:
# do something else
</code></pre>