如果你看懂了这个例子，恭喜你学会了用数据导向（Data-directed）实现带有通用型操作的系统~用这种方式实现的多态系统具有强大的可扩展性，无论是添加新操作还是添加新类型，只需往二维表格中put...
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Data-directed routing 数据定向路由
data directed formatting 数据有向格式化 ; 资料有向格式化
data directed control 数据有向控制
data directed inference 数据引导的推理
inference data directed 推理数据导向
format of data-directed output [计] 定向数据输出格式
data-directed data field length [计] 数据定向的数据域长度
data-directed input 数据定向输入
data-directed stream 数据定向流
Once extracted, that data can be manipulated for viewing and printing or directed into other files or databases.
一旦提取出数据之后，这些数据就可以进行查看、打印或重定向到其他文件或数据库中了。
The data federation server is responsible for receiving a query directed at an integrated view of diverse sources.
数据联合服务器负责接收定向到各种源的集成视图的查询。
In directed data mining, you are trying to predict a particular data point - the sales price of a house given information about other houses for sale in the neighborhood, for example.
在直接的数据挖掘中，您会尝试预测一个特定的数据点—比如，以给定的一个房子的售价来预测邻近地区内的其他房子的售价。
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