将我的代码更新到swift1.2后，我停留在一点上varQuestion:String!varAnswere:String!varAnsweres:[String]!varObjectIDsArray:[String]!varButtonNumber:String!varObjectIDsArrayCount:Int!varquery:PFQuery=PFQuery(className:"AddonQuiz")query.getObjectInBackgroundWithId(QuestionID){(ObjectHolder:PFObject?,error:NSError?)->Vo