ios文件读取（二）

- (void)viewDidLoad {

    [super viewDidLoad];

    /**

     *  @brief 获取文件路径

     *

     */

    NSString * filePath = [self getfilePath];

    NSLog(@"%@",filePath);

    /**

     *  @brief 字符串的读写

     */

    [self stringWR];

    /**

     *  @brief 数组的读写

     */

    [self ArrayWR];

    /**

     *  @brief NSData的读写

     */

    [self DataWR];

}

 

- (NSString *)getfilePath

{

    NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString * documentsDirectory = [paths firstObject];    

    return [documentsDirectory stringByAppendingPathComponent:@"myDocment.txt"];

}

 

- (void)stringWR

{

    NSString * str = @"我的测试数据";

    if ([str writeToFile:[self getfilePath] atomically:YES encoding:NSUTF8StringEncoding error:nil]) {        

        NSLog(@"成功");

    }else{ 

        NSLog(@"失败");

    }

    NSString * text = [NSString stringWithContentsOfFile:[self getfilePath] encoding:NSUTF8StringEncoding error:nil];

    NSLog(@"%@",text);

}

 

- (void)ArrayWR

{

    NSArray * dataArr = @[@"adc",@"acsdsda"];

    if ([dataArr writeToFile:[self getfilePath] atomically:YES]) {

        NSLog(@"成功");

    }

    NSArray * arr = [NSArray arrayWithContentsOfFile:[self getfilePath]];

    NSLog(@"%@",arr[0]);

}

 

- (void)DataWR

{

    NSData * data = [@"sdadsasd" dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];

    if ([data writeToFile:[self getfilePath] atomically:YES]) {

        NSLog(@"成功");

    }

    NSData * data1 = [NSData dataWithContentsOfFile:[self getfilePath]];

    NSString * newStr = [[NSString alloc] initWithData:data1 encoding:NSUTF8StringEncoding];

    NSLog(@"%@",newStr);

}