text: //
  //  UIDevice+SQHardware.h
  //  SQCategoriesDemo
  //
  //  Created by apple on 2016/12/5.
  //  Copyright © 2016年 zsq. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  
  @interface UIDevice (SQHardware)
  
  + (NSString *)sq_platform;
  + (NSString *)sq_platformString;
  
  
  + (NSString *)sq_macAddress;
  
  //Return the current device CPU frequency
  + (NSUInteger)sq_cpuFrequency;
  // Return the current device BUS frequency
  + (NSUInteger)sq_busFrequency;
  //current device RAM size
  + (NSUInteger)sq_ramSize;
  //Return the current device CPU number
  + (NSUInteger)sq_cpuNumber;
  //Return the current device total memory
  
  /// 获取iOS系统的版本号
  + (NSString *)sq_systemVersion;
  
  // 判断当前系统版本是否大于某个版本 (暂时只支持判断大版本号 如 iOS 7 . 8 .9 .10等,不支持小版本号
  + (BOOL)sq_isSystemVersionBiggerThanVersion:(NSInteger)comparsionVersion;
  
  /// 判断当前系统是否有摄像头
  + (BOOL)sq_hasCamera;
  /// 获取手机内存总量, 返回的是字节数
  + (NSUInteger)sq_totalMemoryBytes;
  /// 获取手机可用内存, 返回的是字节数
  + (NSUInteger)sq_freeMemoryBytes;
  
  /// 获取手机硬盘空闲空间, 返回的是字节数
  + (long long)sq_freeDiskSpaceBytes;
  /// 获取手机硬盘总空间, 返回的是字节数
  + (long long)sq_totalDiskSpaceBytes;
  
  @end
  