Interface and Implementation section available scope.

sforiz

于 2010-06-23 16:48:00 发布

阅读量470

点赞数

分类专栏： Delphi 文章标签： interface variables structure application types

Delphi 专栏收录该内容

70 篇文章

订阅专栏

本文详细解释了在编程中定义标识符于接口部分与实现部分的不同可见性，以及如何设计应用整体结构以理解标识符作用域的重要性。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

If you define a variable (identifier) inside the interface section the variable will be "visible" to all units using this unit. If you define an identifier inside the implementation section, the identifier is hidden to the outer world.

When designing the overall structure of your application it is essential to have an understanding of the scope (visibility) of identifiers (routines, variables, types) defined inside the unit:

* Everything defined in the interface section will be available to all other units using this unit
* Everything defined in the implementation section is available only within the unit