Interface mapping 映射

Interface mapping

本问题已经有最佳答案，请猛点这里访问。

在工作中，我们主要使用Delphi，但也使用一些c。所以今天一所大学问了我一个有趣的问题：我如何在C中执行intreface映射？既然我不知道这是个问题：

首先是Delphi示例：

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unit UnitInterfaceMapping;

interface

type
IMyFirstInterface = interface(IInterface)
procedure DoSomethingInteresting;
procedure DoSomethingElse;
end;

IMyNextInterface = interface(IInterface)
procedure DoSomethingInteresting;
end;

TMyCombinedObject = class(TInterfacedObject, IMyFirstInterface, IMyNextInterface)
private
procedure IMyFirstInterface.DoSomethingInteresting = DoSomethingInterestingFirst;
procedure IMyNextInterface.DoSomethingInteresting = DoSomethingInterestingNext;
public
procedure DoSomethingInterestingFirst;
procedure DoSomethingInterestingNext;
procedure DoSomethingElse;
end;

implementation

uses
VCL.Dialogs;
{ TMyCombinedObject }

procedure TMyCombinedObject.DoSomethingElse;
begin
ShowMessage('DoSomethingElse');
end;

procedure TMyCombinedObject.DoSomethingInterestingFirst;
begin
ShowMessage('DoSomethingInterestingFirst');
end;

procedure TMyCombinedObject.DoSomethingInterestingNext;
begin
ShowMessage('DoSomethingInterestingNext');
end;

end.

形成一个我称之为我的代码的表格：

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uses
UnitInterfaceMapping;

procedure TForm14.Button1Click(Sender: TObject);
var
MyFirstInterface: IMyFirstInterface;
MyNextInterface: IMyNextInterface;
begin
MyFirstInterface := TMyCombinedObject.Create;
MyFirstInterface.DoSomethingInteresting;
MyFirstInterface.DoSomethingElse;

MyNextInterface := TMyCombinedObject.Create;
MyNextInterface.DoSomethingInteresting;
end;

结果是三个对话框，每个方法一个。

然后我试着把它移植到C：

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using System;

namespace InterfaceMapping
{

public interface IMyFirstInterface
{
void DoSomethingInteresting();
void DoSomethingElse();
}

public interface IMyNextInterface
{
void DoSomethingInteresting();
}

public class CombinedObject : IMyFirstInterface, IMyNextInterface
{
public void DoSomethingInteresting()
{
throw new NotImplementedException();
}

void IMyFirstInterface.DoSomethingElse()
{
throw new NotImplementedException();
}

void IMyFirstInterface.DoSomethingInteresting()
{
throw new NotImplementedException();
}
}
class Program
{
static void Main(string[] args)
{
new CombinedObject() <== Problem
}
}
}

主要是在创建CombinedObject的新实例时，我只看到DoSomethingInteresting方法。

简而言之：如何在C中执行接口映射#