https://developer.apple.com/reference/usernotifications UserNotifications: 苹果官方文档
https://onevcat.com/2016/08/notification/ 活久见的重构 - iOS 10 UserNotifications 框架解析
http://www.jianshu.com/p/9b720efe3779 WWDC2016 Session笔记 - iOS 10 推送Notification新特性
http://www.jianshu.com/p/c58f8322a278
http://www.jianshu.com/p/81c6bd16c7ac
https://my.oschina.net/osccreate/blog/776152
http://www.cocoachina.com/ios/20161027/17868.html iOS推送实验室-做之前看看我少走弯路
后面对UserNotifications单独发表文章学习相关的知识
参考资料：
http://blog.csdn.net/jiang314/article/details/52502450
http://blog.csdn.net/jiang314/article/details/52502450
http://dely.vip/
