text: //
  //  NSNumber+YPKit.h
  //  YPKit
  //
  //  Created by 喻平 on 14-4-1.
  //  Copyright (c) 2014年 com.yp All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface NSNumber (YPKit)
  
  - (NSString *)toString;
  + (NSNumber *)numberWithCurrentDate;
  
  @end
  