前面一路过来都正确，在后面步骤中出错了，是哪个原因

Question

Page not found (404)Request Method:GETRequest URL:http://127.0.0.1:8000/blog/index/Using the URLconf defined in myblog.urls, Django tried these URL patterns, in this order:admin/blog/The current path, blog/index/, didn't match any of these.You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.python3.6+django2.0url.py如下：from django.contrib import admin from django.urls import path from blog import views urlpatterns = [     path('admin/', admin.site.urls),     path('blog/', views.index),views.py如下：from django.shortcuts import render from blog import models def index(request):     article = models.Article.objects.get(pk=1)     return render(request, 'blog.html', {'article': article})