但这是我感到困惑的,在文档中,它声明：

When an object is pinned,every time you update it by fetching or
saving new data,the copy in the local datastore will be updated
automatically

但接下来,下一个示例,几个段落之后,取消所有对象,然后通过将名称为Highscores的新分数数组固定来更新Highscores

PFQuery *query = [PFQuery queryWithClassName:@"Gamescore"];
[query orderByDescending:@"score"];

// Query for new results from the network
[[query findObjectsInBackground] continueWithSuccessBlock:^id(BFTask *task) {
  return [[PFObject unpinAllObjectsInBackgroundWithName:@"Highscores"] continueWithSuccessBlock:^id(BFTask *ignored) {
    // Cache the new results.
    NSArray *scores = task.result;
    return [PFObject pinAllInBackground:scores withName:@"Highscores"];
  }];
}];

因此,我是否应该取消固定Highscores的所有对象以更新Highscores中的现有分数？

findObjectsInBackground会自动更新任何被固定的找到的对象吗？我很困惑.

谢谢！