FileInfo *fileInfo = [[FileInfo alloc] init];
        fileInfo.name = fileName;
        fileInfo.path = [rootPath stringByAppendingPathComponent:fileName];
        //判断是文件夹还是文档
        BOOL isDir = YES;
        [fileManager fileExistsAtPath:fileInfo.path isDirectory:&isDir];
        if (isDir) {
            //文件夹
            fileInfo.isDir = YES;
            fileInfo.isLock = NO;
        }else{
        NSError *error = nil;
        NSDictionary *fileAttributes = [[NSFileManager defaultManager] attributesOfItemAtPath:fileInfo.path error:&error];
        if (fileAttributes) {
            NSNumber *fileSize;
            NSString *fileOwner, *creationDate;
            NSDate *fileModDate;
            //文件大小
            if ((fileSize = [fileAttributes objectForKey:NSFileSize])) {
                NSLog(@"File size: %qi\n", [fileSize unsignedLongLongValue]);
                if (!fileInfo.isDir) {
                    fileInfo.size = [fileSize intValue];
            //文件创建日期
            if ((creationDate = [fileAttributes objectForKey:NSFileCreationDate])) {
                NSLog(@"File creationDate: %@\n", creationDate);
                fileInfo.date = creationDate;
            //文件所有者
            if ((fileOwner = [fileAttributes objectForKey:NSFileOwnerAccountName])) {
                NSLog(@"Owner: %@\n", fileOwner);
            //文件修改日期
            if ((fileModDate = [fileAttributes objectForKey:NSFileModificationDate])) {
                NSLog(@"Modification date: %@\n", fileModDate);