我按照我的理解是從 DynamoDB 數據庫中提取對象時進行對象映射的正確方法。我的問題是，當我執行 DyanmoDBContext.Scan 函數時，它會拋出以下異常（如下所示）拋出異常：AWSSDK.DynamoDBv2.dll 中的“System.InvalidOperationException”顯示為找不到屬性 [BuildingRoutes] 的存儲信息我無法理解是什么導致拋出此異常，因此實際上并未轉換為我的自定義類。下面是主要功能。class Program{    static void Main(string[] args)    {        // Initialize the Amazon Cognito credentials provider        CognitoAWSCredentials credentials = new CognitoAWSCredentials(            //Not showing my credentials for AWS.        );        var client = new AmazonDynamoDBClient(credentials, RegionEndpoint.USEast1);        DynamoDBContext context = new DynamoDBContext(client);        try        {            // Query a specific forum and thread.            string tableName = "BuildingRoutes";            string primaryKey = "Witmer Hall";            LowLevelQuery.Scan(tableName, primaryKey);            List<RoomsObject> building = new List<RoomsObject>();            Console.WriteLine("\n");            IEnumerable<BuildingRoutes> BuildingRoutess = LowLevelQuery.contextScan(tableName, primaryKey);            printBuilding(building);            Console.WriteLine("Example complete. To continue, press Enter");            Console.ReadLine();        }        catch (AmazonDynamoDBException e) { Console.WriteLine(e.Message); Console.ReadLine(); }        catch (AmazonServiceException e) { Console.WriteLine(e.Message); Console.ReadLine(); }        catch (Exception e) { Console.WriteLine(e.Message); Console.ReadLine(); }    }