多态性是过载的另一个术语吗? [英] Is polymorphism another term for overloading?

问题描述

多态性是过载的另一个术语吗?

Is polymorphism another term for overloading?

推荐答案

否；重载是创建一个具有相同名称，带有不同数量参数或具有另一种类型参数的方法.

No; overloading is creating a method with the same name with a different amount of parameters, or with parameters which are of another type.

多态性是关于在各种类型(都具有相同的基本类型")中更改特定方法的实现/功能.

Polymorphism is about changing the implementation / functionality of a specific method across various types (which all have the same 'base-type').

超载:

public class TestClass
{
    public void DoSomething( int a, int b ) {}

    public void DoSomething( int a, int b, string x ) {}
}

多态性:

public abstract class Base
{
    public abstract DoSomething();
}

public class A : Base
{
    public override DoSomething()
    {
         Console.WriteLine("I am A");
    }
}

public class B : Base
{
     public override DoSomething()
     {
         Console.WriteLine("I am B");
     }
}

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