此模块级范围提供了一个抽象级别(数据隐藏)，允许您限制数据库对特定模块的可见性。

This module-level scoping provides a degree of abstraction (data hiding) that lets you restrict visibility of the database to a specific module.

youdao

此模块级范围提供了一个抽象级别(数据隐藏)，允许您限制数据库对特定模块的可见性。

This module-level scoping provides a degree of abstraction (data hiding) that lets you restrict visibility of the database to a specific module.

youdao