我正在玩GameKitAPI，我有一个非常简单的代码块，它永远不会返回，即使出现错误也不会......GKLeaderboard*pointsRequest=[[GKLeaderboardalloc]initWithPlayerIDs:[matchplayerIDs]];if(pointsRequest!=nil){//Setthepointsleaderboardcategoryid[pointsRequestsetCategory:kPOINTS_LEADERBOARD_ID];[pointsRequestloadScoresWithCompletionHandler:^(NSAr