新建polls/templates/polls/detail.html

{
   { question.question_text }} 
 {% if error_message %} 
 { { error_message }}  
 {% endif %} 
    
      {% csrf_token %} {% for choice in question.choice_set.all %} 
      
     { { choice.choice_text }}  
     
 {% endfor %} 
      
    

 

新建polls/templates/polls/results.html

{
   { question.question_text }}
 
    
      {% for choice in question.choice_set.all %} 
     
{ { choice.choice_text }} -- { { choice.votes }} vote{ { choice.votes|pluralize }}
 {% endfor %} 
    
 Vote again?

 

修改polls包里面的views.py

from django.http import HttpResponseRedirect from django.shortcuts import get_object_or_404, render from django.urls import reverse from django.views import generic from polls.models import Question, Choice # Create your views here. class IndexView(generic.ListView): template_name = 'polls/index.html' context_object_name = 'latest_question_list' def get_queryset(self): """返回最后五个已发布的问题.""" return Question.objects.order_by('-pub_date')[:5] class DetailView(generic.DetailView): model = Question template_name = 'polls/detail.html' class ResultsView(generic.DetailView): model = Question template_name = 'polls/results.html' def vote(request, question_id): question = get_object_or_404(Question, pk=question_id) try: selected_choice = question.choice_set.get(pk=request.POST['choice']) except (KeyError, Choice.DoesNotExist): # 重新发布投票问题表单 return render(request, 'polls/detail.html', { 'question': question, 'error_message': "You didn't select a choice.", }) else: selected_choice.votes += 1 selected_choice.save() # 成功处理post数据后，始终返回HttpResponseRedirect # 如果用户点击后退按钮，这将防止两次发布数据。 return HttpResponseRedirect(reverse('polls:results', args=(question.id,)))

修改polls包里面的polls_urls.py

from django.urls import path from . import views app_name = 'polls' urlpatterns = [ path('', views.IndexView.as_view(), name='index'), # 示例：/polls/ path('
    
     /', views.DetailView.as_view(), name='detail'), # 示例：/polls/5/ path('
     
      /results/', views.ResultsView.as_view(), name='results'), # 示例：/polls/5/results/ path('
      
       /vote/', views.vote, name='vote'), # 示例：/polls/5/vote/ ]
      
     
    

 

python manage.py runserver

启动服务