Creat folders －创建文件夹

1。实现

  - (BOOL)createDirectoryAtPath:(NSString *)path withIntermediateDirectories:(BOOL)createIntermediates attributes:(NSDictionary *)attributes error:(NSError **)error

createIntermediates:YES-若path中某一目录不存在，则创建它

                    NO-若path中某一目录不存在，则此方法返回NO,创建失败

                    例如：要创建文件夹.../tmp/data/images，其中，data文件夹不存在，若用YES,则此方法会连带创建data及data下的images；若NO,则创建失败

e.g.

    NSFileManager *fileManager = [[NSFileManager alloc] init];   

    NSString *tempDir = NSTemporaryDirectory();

    NSString *imagesDir = [tempDir stringByAppendingPathComponent:@"images"];

    

    NSError *error = nil;

    if ([fileManager createDirectoryAtPath:imagesDir withIntermediateDirectories:YES attributes:nil error:&error]){       

        NSLog(@"Successfully created the directory");       

    } else {

        NSLog(@"Failed to create the directory. Error = %@", error);

    }