def idcs_detail(request,pk,*args,**kwargs):
    try:
        idc = Idc.objects.get(pk=pk)
    except Idc.DoesNotExist:
        return HttpResponse(status=404)
    
    if request.method == "GET":
        serializer= IdcSerializer(idc)
        return JsonResponse(serializer.data)
    
    elif request.method == "PUT":
        content = JSONParser().parse(request)
        serializer= IdcSerializer(idc,data=content)
        if serializer.is_valid():
            serializer.save()
            return JsonResponse(serializer.data)
        return JsonResponse(serializer.errors,status=400)
    elif request.method=="DELETE":
        idc.delete()
        return HttpResponse(status=404)
from django.urls import path,include
from django.conf.urls import url
from .views import idcs_list,idcs_detail
urlpatterns = [
    url(r'idcs/$',idcs_list),
    #url("^idcs/(?P<pk>[0-9]+)/$",views.idcs_detail),
    url("^idcs/(?P<pk>[0-9]+)/$",idcs_detail),
]

效果

get效果

3.使用原生视图,idcs_detail_django

put效果

letter 没有更改成功，是因为序列化中 update方法没有letter

3.使用原生视图,idcs_detail_序列化_02