text: //
  //  NSDict+Extension.h
  //  AXBaseMall
  //
  //  Created by King on 15/9/4.
  //  Copyright (c) 2015年 King. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface NSDictionary (Extension)
  
  /** 得到sign 字符验签 */
  - (NSDictionary *) yj_sign;
  
  @end
  