text: //
  //  DDSeqNoManager.h
  //  Duoduo
  //
  //  Created by 独嘉 on 14-5-7.
  //  Copyright (c) 2014年 zuoye. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface DDSeqNoManager : NSObject
  + (instancetype)instance;
  - (uint32_t)seqNo;
  @end
  