c# - 限制子类继承基类的某些方法

Question

using System;

public class Base
{
    public Base()
    {
    }

    public void M1()
    {
    }

    public void M2()
    {
    }

    public void M3()
    {
    }
}

public class Derived : Base
{
    //this class should get only method 1
}

public class SecondDerived : Base
{
    //this class should get only method 2 and method3
}

需求是:基类包含M1、M2、M3这3个方法。
派生类应仅继承 M1，SecondDerived 应仅继承 M2 和 M3。

如何做到这一点？

Answer 1

您不能有选择地继承这样的方法。派生类自动继承基类的所有公共(public)方法。我建议您将 Base 类分成两个类:

public class Base1
{
    public Base1()
    {
    }

    public void M1()
    {
    }
}

public class Base2
{
    public void M2()
    {        
    }

    public void M3()
    {       
    }
}

public class First : Base1

public class Second : Base2