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);

}