C# 将EqualityComparer转换为EqualityComparer

我有这样的等级制度：

public interface INode
{
    //...
}

public interface INode<T> : INode
{
    //...
}

public class Node : INode
{
    //...
}

public class Node<T> : Node, INode<T>
{
    //...     
}

现在我想这样做：

EqualityComparer<INode<int>> intcomparer = EqualityComparer<INode<int>>.Default;
EqualityComparer<INode> comparer = intcomparer;

---

为什么这个角色无效？如何修复它？

为什么强制转换应该有效

是什么让你相信EqualityComparer源自EqualityComparer或EqualityComparer

您无法将其与此进行比较：

Node<string> stringNode;
Node node = stringNode;

当您查看

public class Node<T> : Node, INode<T>

public abstract class EqualityComparer<T> : 
    System.Collections.Generic.IEqualityComparer<T>,
    System.Collections.IEqualityComparer

EqualityComparer<INode<int>> intcomparer = EqualityComparer<INode<int>>.Default;
IEqualityComparer comparer = intcomparer;

IEqualityComparer<INode> comparer = EqualityComparer<INode>.Default;
IEqualityComparer<INode<int>> intcomparer = comparer;