text: //
  //  GXWaterViewController.h
  //  GXUICollectionView
  //
  //  Created by GuoShengyong on 2017/12/11.
  //  Copyright © 2017年 cong. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  
  @interface GXWaterViewController : UIViewController
  
  @property (nonatomic, assign) UICollectionViewScrollDirection scrollDirection;  //滚动方向
  
  @end
  