iOS文件管理

- (void)_getSandBoxPath {

    NSArray *pathArray = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);

    NSString*cachesPath = [pathArray firstObject];

    NSFileManager *fileManger = [NSFileManager defaultManager];

    //创建文件夹

    NSString *dataPath = [cachesPath stringByAppendingPathComponent:@"HomeListData"];

    NSError *createError;

    [fileManger createDirectoryAtPath:dataPath withIntermediateDirectories:YES attributes:nil error:&createError];

    //创建文件

    NSString *listDataPath = [dataPath stringByAppendingPathComponent:@"listData"];

    NSData *listData = [@"abc" dataUsingEncoding:NSUTF8StringEncoding];

    [fileManger createFileAtPath:listDataPath contents:listData attributes:nil];

    //查询文件

    __unused BOOL isExist = [fileManger fileExistsAtPath:listDataPath];

//    if (isExist) {

//        [fileManger removeItemAtPath:listDataPath error:nil];

//    }

    //更新文件

    NSFileHandle *fileHandle = [NSFileHandle fileHandleForUpdatingAtPath:listDataPath];

    [fileHandle seekToEndOfFile];

    [fileHandle writeData:[@"def" dataUsingEncoding:NSUTF8StringEncoding] error:nil];

    [fileHandle synchronizeFile];

    [fileHandle closeFile];

}