text: //
  //  LDNetworkFlowTool.h
  //  LDSpeedTest
  //
  //  Created by wangjiale on 2018/1/16.
  //  Copyright © 2018年 Joy. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  typedef void (^LDFlowBlock) (float speed); // kb/s
  
  @interface LDNetworkFlowTool : NSObject
  
  + (instancetype)sharedInstance;
  
  // 传入次数，次数代表读取几次网卡数据来求均值
  - (void)startWithTimes:(int)times flowBlock:(LDFlowBlock)flowBlock;
  
  @end
  