text: //
  //  Manager.h
  //  UIButtonDemo
  //
  //  Created by mac on 2018/12/13.
  //  Copyright © 2018年 mac. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  NS_ASSUME_NONNULL_BEGIN
  
  @interface Manager : NSObject
  + (instancetype)shareInstance;
  @end
  
  NS_ASSUME_NONNULL_END
  