软件开发的抽象

软件开发的抽象：

1、计算机的抽象；计算机硬件的抽象；操作系统是个中介；

2、语言和设计的抽象；

3、编程思想的抽象；

 

Abstraction (computer science)

 

Abstractions may also refer to vehicles, features, or rules of ​​computational systems​​ or ​​programming languages​​ that carry or utilize features of or abstraction itself, such as:

• the process or feature of using ​​data types​​ to perform data abstraction to decouple usage of from working representations of ​​data structures​​ within ​​programs​​;^[6]
• the concept of ​​procedures, functions, or subroutines​​ which represent a specific way of abstracting of ​​control flow​​ in programs;
• the rules commonly named "abstraction" that generalize ​​expressions​​ using ​​free and bound variables​​ in the various versions of the ​​lambda calculus​​;^[7][8]
• the usage of ​​S-expressions​​ as an abstraction of data structures and programs in the ​​Lisp programming language​​;^[9]
• the process of reorganizing common behavior from non-abstract ​​classes​​ into "abstract classes" using ​​inheritance​​ to abstract over ​​sub-classes​​ as seen in the ​​object-oriented​​ ​​C++​​ and ​​Java programming languages​​.
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https:///wiki/Abstraction_(computer_science)

 

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