text: //
  //  AppDelegate.h
  //  Connectivity
  //
  //  Created by siping ruan on 17/1/6.
  //  Copyright © 2017年 Rasping. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  #import <CoreData/CoreData.h>
  
  @interface AppDelegate : UIResponder <UIApplicationDelegate>
  
  @property (strong, nonatomic) UIWindow *window;
  
  @property (readonly, strong) NSPersistentContainer *persistentContainer;
  
  - (void)saveContext;
  
  
  @end
  
  