text: //
  //  CollectionViewController.h
  //  tools
  //
  //  Created by jike1 on 2019/3/21.
  //  Copyright © 2019 王旭. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  
  NS_ASSUME_NONNULL_BEGIN
  
  @interface CollectionViewController : UIViewController
  
  @end
  
  NS_ASSUME_NONNULL_END
  