Data manipulation services are processing logic that directly manipulates data values and the representation of those values for storage, transport or presentation purposes.
数据操作服务是处理逻辑，其直接操作数据值和那些值的表示形式，以便进行存储、传输或表示。
A form's data model (how it behaves when data is submitted, initial values, and more) is separated from its presentation.
表单数据模型(数据提交时的行为、初始值等)和表示分离开来。
A form's data model (how it behaves when data is submitted, initial values, and more) is separated from its presentation.
表单数据模型(数据提交时的行为、初始值等)和表示分离开来。
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