//
//  NSData+CustomDescription.h
//  iOSPrinterDemo
//
//  Created by ldc on 2017/9/23.
//  Copyright © 2017年 Mellow. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSData (CommandConvert)

- (NSString *)hexString;

+ (NSData *)dataWithHexString:(NSString *)str;

@end
