1、引用django框架的项目，当你需要修改Django administration这个标题的时候，
去admin.py项目修改，加一句话：
admin.site.site_header = "资产管理平台"
其中site_header是django三方包里面定义的变量，在base_site.html这个里面能看到，
定义的变量名，需要你在admin.py里面进行注册；
2、本质：
/usr/local/lib/python3.7/site-packages/django/contrib/admin/templates/admin/sites.py
打开这个源代码
# -*- coding:utf-8 -*- 加上这个
修改这个类
class AdminSite(object):
"""
An AdminSite object encapsulates an instance of the Django admin application, ready
to be hooked in to your URLconf. Models are registered with the AdminSite using the
register() method, and the get_urls() method can then be used to access Django view
functions that present a full admin interface for the collection of registered
models.
"""
# Text to put at the end of each page's <title>.
# site_title = ugettext_lazy(u’资产管理平台’)
site_title = ugettext_lazy('Django site admin')
# site_header = ugettext_lazy(u'资产管理平台')
site_header = ugettext_lazy('Django administration')