NSObject+CLFNotificationObserver

程序名称：NSObject+CLFNotificationObserver

NSObject+CLFNotificationObserver 介绍

NSObject+CLFNotificationObserver 是 NSObject 类，用来创建 NSNotification 观察器，处理
weakSelf/strongSelf dance。

NSObject+CLFNotificationObserver 官网

https://github.com/cflesner/NSObject-CLFNotificationObserver