text: //
  //  GPIWander.h
  //  ObjCSteeringBehaviorDemo
  //
  //  Created by yangboz on 14-8-7.
  //  Copyright (c) 2014年 GODPAPER. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @protocol GPIWander <NSObject>
  @required
  -(void)wander;
  @end
  