text: //
  //  Tools.h
  //  idfa
  //
  //  Created by mengyijie on 16/10/17.
  //  Copyright © 2016年 mengyijie. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface Tools : NSObject
  
  + (NSString *)KeychainIdfa;
  
  @end
  