不好意思，老师，我Django的版本是1.11.7，错写成pycharm版本号了。老师，麻烦你帮我看一下，我贴一下修改后的polls\urls.py代码及其他代码： （1） from django.urls import path from . import views urlpatterns = [ path('', views.index, name='index'), # ex: /polls/5/ path('<int:question_id>/', views.detail, name='detail'), # ex: /polls/5/results/ path('<int:question_id>/results/', views.results, name='results'), # ex: /polls/5/vote/ path('<int:question_id>/vote/', views.vote, name='vote'), ] （2）view.py中代码如下： from django.http import HttpResponse def index(request): return HttpResponse("Hello, world. You're at the polls index.") def detail(request, question_id): return HttpResponse("You're looking at question %s." % question_id) def results(request, question_id): response = "You're looking at the results of question %s." return HttpResponse(response % question_id) def vote(request, question_id): return HttpResponse("You're voting on question %s." % question_id) （3）setting中的INSTALLED_APPS代码： INSTALLED_APPS = [ 'polls.apps.PollsConfig', 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', ] （4）mysite/urls.py代码如下： from django.contrib import admin from django.urls import include, path urlpatterns = [ path('polls/', include('polls.urls')), path('admin/', admin.site.urls), ] 后端页面显示问题出在mysite/urls上面，可是找不到相关问题出在哪儿，麻烦您帮我看一下，老师