重载和覆盖 [英] Overloading and overriding

问题描述

什么是重载和重写的区别。

What is the difference between overloading and overriding.

推荐答案

重载

超载是当你有在同一范围内多个方法，具有相同的名称但不同的签名。

Overloading is when you have multiple methods in the same scope, with the same name but different signatures.

//Overloading
public class test
{
    public void getStuff(int id)
    {}
    public void getStuff(string name)
    {}
}

重写

重载是一个原则，即允许你改变一个方法的功能的子类。

Overriding is a principle that allows you to change the functionality of a method in a child class.

//Overriding
public class test
{
        public virtual void getStuff(int id)
        {
            //Get stuff default location
        }
}

public class test2 : test
{
        public override void getStuff(int id)
        {
            //base.getStuff(id);
            //or - Get stuff new location
        }
}

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