Question

为了尝试学习一些CloudKit基础知识，我正在构建一个应用程序，允许用户发布问题并接收＆＃34; Up Vote＆＃34;或＆＃34;向下投票＆＃34;。应用程序运行正常，直到我添加一个条目然后重新加载。当我尝试将向上或向下值添加到数组时，为什么会收到错误EXC_BAD_INSTRUCTION（code = EXC_1386_INVOP，subcode = 0x0）？

        self.pred = NSPredicate(format: "TRUEPREDICATE")
        let query = CKQuery(recordType: "Questions", predicate: NSPredicate(value: true))
        self.queryOperation = CKQueryOperation (query: query)
        self.queryOperation.recordFetchedBlock = {
            record in

            self.recArray.append(record.objectForKey("Question") as! String)
            self.recIdArray.append(record.recordID)

            //Gives me the correct value
            print(record.objectForKey("Up") as! Int64)

            //Errors on these 2 lines
            self.upArray.append(record.objectForKey("Up") as! Int64)
            self.downArray.append(record.objectForKey("Down") as! Int64)

        }

Answer 1

我通过更改数组的声明来修复它： var upArray = Int64 var downArray = Int64 至： var upArray = AnyObject var downArray = AnyObject

希望这也有助于其他人

Icloud查询结果出现EXC_BAD_INSTRUCTION错误

1 个答案: