擅长:python、mysql、java
<p>你忘了一步:</p>
<pre><code>def newECG(request, procedure_id):
if request.method == 'POST':
form = NewECG(request.POST)
if form.is_valid():
ecg = form.save()
info = IncomingProcedure.objects.get(id=procedure_id)
ecg.procedure.add(info) #HERE IS A PROBLEM
return HttpResponseRedirect('/system/')
</code></pre>