text: //
  //  NSDictionary+DYSafe.h
  //  DYSafeObjectDemo
  //
  //  Created by defaultyuan on 2018/5/31.
  //  Copyright © 2018年 defaultyuan. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface NSDictionary (DYSafe)
  
  @end
  