polymorphism
简明释义
英[ˌpɒlɪˈmɔːfɪz(ə)m]美[ˌpɑlɪˈmɔrfɪzm]
n. 多态性；多形性；同质多晶
英英释义
单词用法
遗传多态性 | |
片段长度多态性 |
同义词
反义词
| 单态性 | The monomorphism of the data structure limits its flexibility. | 数据结构的单态性限制了其灵活性。 | |
| 一致性 | 设计的一致性可能导致缺乏创造力。 |
例句
1.We'll start by presenting ways you can use Hibernate and polymorphism to incorporate behavior in the domain model.
在这个部分中，我们首先讨论如何使用Hibernate和多态性在领域模型中集成行为。
2.The encoding rules are very flexible and support the representation of data graphs and polymorphism.
编码规则非常灵活并支持图形数据和多态的表示。
3.Table per Concrete Class using Implicit polymorphism.
4使用隐式多态实现每个具体类一张表。
4.If objects and inheritance go together like chocolate and peanut butter, objects and polymorphism are like hand and glove.
如果说对象和继承就像巧克力和花生酱的话，那对象和多态就好比手和手套。
5.Leverage object-oriented concepts such as encapsulation, inheritance, and polymorphism.
利用面向对象的概念，如封装、继承和多态性。
6.Chapter 3 digs into inheritance (basic and multiple) and polymorphism.
第三章深刻讲解了继承(基本继承和多重继承)和多态。
7.In single-dispatch polymorphism, the object that "owns" a method is singled out.
在单分派多态性中，挑选出“拥有”方法的对象。
什么是多态性？
9.This is polymorphism, right?
也就是多态，对吗？
10.The concept of polymorphism is essential in designing flexible and reusable code.
多态 的概念对于设计灵活和可重用的代码至关重要。
11.Java supports polymorphism through method overloading and overriding.
Java通过方法重载和重写支持多态。
12.The use of polymorphism in programming can significantly reduce code complexity.
在编程中使用多态可以显著降低代码复杂性。
13.In biology, polymorphism refers to the occurrence of two or more different forms or morphs in the population of a species.
在生物学中，多态 指的是在一个物种的种群中出现两种或更多不同形态或变体。
14.In object-oriented programming, polymorphism allows methods to do different things based on the object it is acting upon.
在面向对象编程中，多态 允许方法根据其作用的对象执行不同的操作。
作文
In the realm of computer science and programming, the term polymorphism refers to the ability of different objects to respond to the same function call in a manner that is specific to their type. This concept is fundamental to object-oriented programming (OOP) and allows for flexibility and the reuse of code, which can significantly enhance the efficiency of software development. The word polymorphism itself is derived from the Greek words 'poly', meaning many, and 'morph', meaning form or shape. Thus, it literally translates to 'many forms'.There are two primary types of polymorphism: compile-time (or static) polymorphism and run-time (or dynamic) polymorphism. Compile-time polymorphism is achieved through method overloading and operator overloading. In method overloading, multiple methods can have the same name but with different parameters. This means that the method that gets executed is determined at compile time based on the method signature. For instance, a class may have a method called 'add' that can add two integers, two doubles, or even concatenate two strings, depending on the input parameters.On the other hand, run-time polymorphism is primarily accomplished through method overriding, which occurs in inheritance hierarchies. In this scenario, a base class defines a method, and derived classes provide specific implementations of that method. When a method is called on an object, the version of the method that gets executed is determined at run-time based on the actual object type rather than the reference type. This allows for a more dynamic and flexible approach to programming, as it enables developers to write code that can work with objects of different classes interchangeably.The advantages of polymorphism are numerous. It promotes code reusability, as functions can be written to handle a variety of data types. Additionally, it enhances maintainability; when changes are made to a base class, all derived classes can automatically inherit these changes, reducing the need for repetitive code modifications. Furthermore, polymorphism supports the design principle of programming to an interface rather than an implementation, which is crucial for creating scalable and robust applications.However, polymorphism also comes with its challenges. Developers need to ensure that the correct method is called at run-time, which can sometimes lead to confusion and bugs if not managed properly. Moreover, excessive use of polymorphism can lead to complex and hard-to-follow code structures, making it difficult for others (or even the original developer) to understand the program's flow.In conclusion, polymorphism is a powerful concept in programming that allows for the creation of flexible and reusable code. By understanding and effectively implementing polymorphism, developers can write cleaner, more efficient, and more maintainable code. As technology continues to evolve, the importance of mastering polymorphism in software development will only grow, making it an essential skill for aspiring programmers and seasoned professionals alike.
在计算机科学和编程领域，术语多态性指的是不同对象能够以特定于其类型的方式响应相同函数调用的能力。这个概念是面向对象编程（OOP）的基础，允许代码的灵活性和重用，这可以显著提高软件开发的效率。多态性这个词本身源自希腊语单词“poly”，意为许多，以及“morph”，意为形状。因此，它的字面意思是“多种形式”。多态性主要有两种类型：编译时（或静态）多态性和运行时（或动态）多态性。编译时多态性通过方法重载和运算符重载来实现。在方法重载中，可以有多个方法具有相同的名称，但参数不同。这意味着根据方法签名，在编译时决定执行哪个方法。例如，一个类可能有一个名为“add”的方法，可以根据输入参数添加两个整数、两个双精度数，甚至连接两个字符串。另一方面，运行时多态性主要通过方法重写来完成，这发生在继承层次结构中。在这种情况下，基类定义一个方法，派生类提供该方法的具体实现。当对一个对象调用方法时，执行的版本是在运行时根据实际对象类型而不是引用类型来决定的。这使得编程更加动态和灵活，因为它使开发人员能够编写可以与不同类的对象互换使用的代码。多态性的优点是多方面的。它促进了代码重用，因为可以编写处理各种数据类型的函数。此外，它增强了可维护性；当对基类进行更改时，所有派生类可以自动继承这些更改，减少了重复修改代码的需要。此外，多态性支持按接口而非实现编程的设计原则，这对于创建可扩展和稳健的应用程序至关重要。然而，多态性也带来了挑战。开发人员需要确保在运行时调用正确的方法，如果管理不当，有时会导致混乱和错误。此外，过度使用多态性可能导致复杂且难以理解的代码结构，使其他人（甚至原始开发人员）难以理解程序的流程。总之，多态性是编程中的一个强大概念，可以创建灵活和可重用的代码。通过理解和有效实施多态性，开发人员可以编写更清晰、更高效和更易维护的代码。随着技术的不断发展，掌握多态性在软件开发中的重要性将只会增加，使其成为有志程序员和经验丰富的专业人士必备的技能。
