安装：rest framework
pip install djangorestframework
安装完成后：
在setting app中注册：rest_framework
'rest_framework'
参考文章：
www.cnblogs.com/xiaojikuaipao/p/6009882.html
blog.csdn.net/svalbardksy/article/details/50548073
www.cnblogs.com/menkeyi/p/5897213.html
blog.csdn.net/ppppfly/article/details/51077433
http://www.cnblogs.com/fnng/p/3748043.html
http://www.cnblogs.com/menkeyi/p/5897213.html
