This switching of classes at run time is a common feature of object-oriented programming, known as polymorphism.
这种在运行时的类切换是面向对象编程的一个常见特性，称为多态性。
Pattern matching plays a central role in functional programming just as polymorphism plays a central role in object-oriented programming.
模式匹配在函数式编程中扮演了中心角色，就好像多态在面向对象编程中扮演着中心角色一样。
Type polymorphism and polymorphism in object-oriented programming: Read Wikipedia's articles about polymorphism, including subtype polymorphism.
类型多态性和面向对象编程的多态性：阅读有关多态性的Wikipedia文章，包括子类型多态性。
Most programmers — in Python or other object-oriented programming languages — who use polymorphism, do so in a rather practical and concrete way.
使用Python或其它面向对象编程语言的大多数程序员在使用多态性时都采用了一种较为实用和具体的方式。
Inheritance and polymorphism are fundamental to object-oriented (OO) programming.
继承和多态性是面向对象(object - oriented,OO)程序设计的基础。
Polymorphism is essential to object-oriented programming because it allows you to use items with the same names, no matter what type of object is in use at the moment.
多态性是面向对象编程的精华，因为它允许使用同名的项，而不管此时在使用什么类型的对象。
Polymorphism is a main feature of achieving software code-reuse in object-oriented programming.
多态性是面向对象程序设计中实现软件代码重用的一个重要特性。
The process used by object-oriented programming languages to implement polymorphism is called dynamic binding.
被面向对象编程语言所实现的多态性被称作动态绑定。
If the programming language does not support polymorphism can not be called object-oriented language.
若程序设计语言不支持多态性，不能称为面向对象的语言。
Polymorphism is the third essential feature of an object-oriented programming language, after data abstraction and inheritance.
多态性是面向对象语言中继封装，继承之后第三个基本特征。
Polymorphism is the third essential feature of an object-oriented programming language, after data abstraction and inheritance.
多态性是面向对象语言中继封装，继承之后第三个基本特征。
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