iOS笔记—NSData

NSData与NSString互转

//
//  main.m
//  NSData
//
//  Created by hhg on 15-6-11.
//  Copyright (c) 2015年 hhg. All rights reserved.
//

#import 

int main(int argc, const char * argv[]) {
    @autoreleasepool {

        NSString *string = @"hhg ";
        //string---> data
        NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];
        NSLog(@"%@", data);

        //data ---> string
        NSString *myString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"%@", myString);
    }
    return 0;
}