从调用父类的子方法 [英] Calling child class method from parent

问题描述

是否有可能为a.doStuff（）方法来打印B做东西，而无需编辑类？如果是的话，我会怎么做呢？

Is it possible for the a.doStuff() method to print "B did stuff" without editing the A class? If so, how would I do that?

class Program
{
    static void Main(string[] args)
    {
        A a = new A();
        B b = new B();

        a.doStuff();
        b.doStuff();

        Console.ReadLine();
    }
}

class A
{
    public void doStuff()
    {
        Console.WriteLine("A did stuff");
    }
}

class B : A
{
    public void doStuff()
    {
        Console.WriteLine("B did stuff");
    }
}

我改装蒸汽游戏，界面完全音频。而且我不希望反编译，并重新编译这一切，因为这将与蒸汽螺丝。我的程序通过XNA'注入'到界面完全音频。我可以使用update（）和借鉴（）由XNA方法mod一些事情。但它相当有限。我wan't覆盖的基础方法mod更多的东西（worldgen为例）。

I'm modding a steam game, Terraria. And I don't want to decompile and recompile it all because that will screw with steam. My program 'injects' into Terraria via XNA. I can use the update() and draw() methods from XNA to mod some things. But it's pretty limited. I wan't to override base methods to mod more things (worldgen for example).

推荐答案

是的，如果你声明 doStuff 为虚拟在 A 然后覆盖在 b 。

Yes, if you declare doStuff as virtual in A and then override in B.

class A
{
    public virtual void doStuff()
    {
        Console.WriteLine("A did stuff");
    }
}

class B : A
{
    public override void doStuff()
    {
        Console.WriteLine("B did stuff");
    }
}

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