为什么django激活管理界面，运行服务器后，无法访问(语言-python)

为什么django激活管理界面，运行服务器后，无法访问

出现情况
Page not found (404)
Request Method: GET
Request URL: http://127.0.0.1:8000/
Using the URLconf defined in student.urls, Django tried these URL patterns, in this order:

chat/
The empty path 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.
运行结果及报错内容

在地址栏加上chat就行了