c# - 注入(inject)继承

Question

是否可以在继承类中重新调整调用的用途，我需要在 TheLastClass 处理上下文之前和之后对 TheFirstClass 中的上下文做一些额外的事情.理想情况下，我不想在 TheLastClass 的所有实例中重命名进程覆盖。我试图只添加另一个抽象类，但继承阻止了第二个同名抽象类。

void Main()
{
    var context = new ContextClass();
    var LastClass = new TheLastClass();
    LastClass.CallTheProcess(context);
}

// Define other methods and classes here
abstract class TheBaseClass
{
    public abstract void Process(ContextClass context);

    public void CallTheProcess(ContextClass context)
    {
        // other necessary stuff
        context.test = "Base Class";
        Process(context);
    }
}

class TheFirstClass : TheBaseClass
{   
    //public abstract void Process(ContextClass context)
    public override void Process(ContextClass context)
    {
        context.test = "success";
        Process(context);//How can I call inherited overrides? and not infinite loop
    }
}

class TheLastClass : TheFirstClass
{
    public override void Process(ContextClass context)
    {
        //do stuff with the context
        if(context.test == "success")
        {
            "ThisWorked".Dump();
            //how do I get here?
        }
    }
}

class ContextClass
{
    public string test;
}

Answer 1

您可以使用 base 关键字。

void Main()
{
    var context = new ContextClass();
    var LastClass = new TheLastClass();
    LastClass.CallTheProcess(context);
}


abstract class TheBaseClass
{
    public abstract void Process(ContextClass context);

    public void CallTheProcess(ContextClass context)
    {
        this.Process(context); 
        // other necessary stuff
        context.test = "Base Class";
    }
}

class TheFirstClass : TheBaseClass
{   
    public override void Process(ContextClass context)
    {
        context.test = "success";
        // some operations
    }
}

class TheLastClass : TheFirstClass
{
    public override void Process(ContextClass context)
    {
        base.Process(context); // from the TheFirstClass
        // other operations
    }
}

然后，如果您调用 LastClass.CallTheProcess(context);，您将获得以下命令:

1. TheBaseClass.CallTheProcess
2. TheFirstClass.Process
3. TheLastClass.Process(//其他操作部分)