【19软工2班】面向对象编程五个特性

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.

面向对象编程的特性：

1.万物皆可对象

2.程序就是对象的集合，通过发送信息来告诉集合中的对象们应该做什么

3.每一个对象都有自己的，由其他对象组成的内存

4.每个对象都有一个类型

5.同一特定类型的对象可以接收相同的信息