我有这个函数可以从FireBase获取用户并将他们转换到Dictionary中:letleaderBoardDB=FIRDatabase.database().reference().child("scores1").queryOrderedByValue().queryLimited(toLast:5)leaderBoardDB.observe(.value,with:{(snapshot)inprint("scoresscores",snapshot)ifletdictionary=snapshot.valueas?[String:Any]{forplayaindictionary