#views.py文件 def page_not_found_view(request, exception): return render(request, 'app/404.html', status=404) #根目录新建urls.py 文件 urlpatterns = [ path('admin/', admin.site.urls), path('',include('users.urls')), path('',include('app.urls')), ] handler404 = "yournameapp.views.page_not_found_view" #settings.py文件 import os DEBUG = False TEMPLATES = [ { 'BACKEND': 'DIRS': [os.path.join(BASE_DIR, 'templates')], ], }, }, ]