This mode partitions the software into four development layers: view controlling layer, business logic layer, database accessing layer and database layer.

该模式将软件分为四个开发层：界面控制层、业务逻辑层、数据库接口层和数据库层。

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This mode partitions the software into four development layers: view controlling layer, business logic layer, database accessing layer and database layer.

该模式将软件分为四个开发层：界面控制层、业务逻辑层、数据库接口层和数据库层。

youdao