aws 代码扫描所有dynamoDB数据返回ScanItemResult格式

"{Items: [{Status={S: enable,}, Description={S: This's a template of DevictType,}, DeviceTypeName={S: SmartBus,}, Platform={S: Android,}, DataStream={M: {DataStreamType={S: non-Numeric,}, DataStreamName={S: Longitude,}, DataStreamDisplayName={S: 经度,}, DataStreamUnit={S: 116°23′17〃,}},}, MasterKey={S: SmartBus-Xi'an,}, CreateTime={S: 201508061045,}, ServiceProtocol={S: HTTP,}, ManagementProtocol={S: LWM2M,}, DeviceTypeID={S: 1,}}],Count: 1,ScannedCount: 1,}"

特点：

1. value值多了个S: 

2. 最后会有数量统计