标签：io os ar sp div on art cti bs
Object Oriented Programming
- Objects send and receive messages(objects do things!)
Objects send messages
-Composed by the sender
-Interpreted by the receiver//kouyi
-Implemented by methods//shishi
- Messages
- May cause receiver to change state
Object (cat)
Represent things,events, or concepts
Respond to messages at run-time
Classes(cat class)
Define properties of instances
Act like types in C++
OOP Characteristics
1.Everything is an object.
2.A program is a bunch of objects telling each other what to do by sending messages.
3.Each object has its own memory made up of other objects.
4.Every object has a type.
5.All objects of a particular type can receive the same messages.//正反理解
An object has an interface
The interface is the way it receives messages.
It is defined in the class the object belong to.
Functions of the interface
The Hidden Implementation
- Inner part of an object,data menbers to present its state,and the actions it takes when messages is rcvd id hidden.
- Class creators vs. Client programmers
-Keep client programmers‘ hands off portions they shoule not touch.
-Allow the class creators to change the internal working of the class without worrying about how it will affect the client programmers.
Encapsulation//封装
- Bundle data and methods dealing with these data together in an object
- Hide the details if the data and the action
- Restrict only access to the publicized methods.
C++之 面向对象基本原理
标签：io os ar sp div on art cti bs
原文地址：http://www.cnblogs.com/sunchangjun/p/4067898.html
