1. 为什么使用反向解析

避免硬编码URL

2. 示例

URL: http://www.xxx.com/article/2019/

2.1. 设置路由

# app/urls.py
app_name = 'example'
#...
    path('article/<int:year>/', views.articles, name='articles')
#...

2.2. 模板中使用

<!-- app/templates/appname/index.html -->
<a href="{% url 'example:articles' 2019 %}">2019 Articles</a>

2.3. 视图中使用

# app/views.py
from django.http import HttpResponseRedirect # 跳转
from django.urls import reverse # 反向解析
def redirect_to_article(request):
    year = 2019
    return HttpResponseRedirect(reverse('example:articles', args=(year,)))
    # 或者
    return HttpResponseRedirect(reverse('example:articles', args=[year]))