.net 是否有类似于只声明函数命名而不声明参数和/或返回类型的接口？

我只是从接口开始，我想知道是否有一个概念来处理我遇到的一种情况，我想用返回实现接口的类类型的函数实现一个公共接口

Public Interface IFoo

    Function GiveMeSomething() As Object

End Interface

Public Interface IFoo(Of T)
    Inherits IFoo

    Overloads Function GiveMeSomething() As T

End Interface

Public Class Foo
    Implements IFoo(Of Foo)

    Public Function GiveMeANewFoo() As Foo Implements IFoo(Of Foo).GiveMeSomething
        Return New Foo()
    End Function

    Private Function GiveMeANewFooInternal() As Object Implements IFoo.GiveMeSomething
        Return Me.GiveMeANewFoo()
    End Function

End Class

是否有这样一种功能或概念上的方法来实现这一点？每次调用都不传入类型

从概念上讲，是指

Interface IFoo

    Function GiveMeSomething(of T)() As T

End Interface

Public Class MyFoo
    Implements IFoo

    Public Function GiveMeANewFoo(Of T)() As T Implements IFoo.GiveMeSomething
        return new T
    End Function

End Class

然后是用法

Dim oldFoo as new MyFoo()
Dim newFoo As MyFoo = oldFoo.GiveMeANewFoo()

你需要的是一份工作

另一种常用的设计模式是让通用接口继承“基本接口”

---

非常感谢。正是我需要的：）

Dim oldFoo As New Foo()
Dim newFoo As Foo = oldFoo.GiveMeANewFoo()

Public Interface IFoo

    Function GiveMeSomething() As Object

End Interface

Public Interface IFoo(Of T)
    Inherits IFoo

    Overloads Function GiveMeSomething() As T

End Interface

Public Class Foo
    Implements IFoo(Of Foo)

    Public Function GiveMeANewFoo() As Foo Implements IFoo(Of Foo).GiveMeSomething
        Return New Foo()
    End Function

    Private Function GiveMeANewFooInternal() As Object Implements IFoo.GiveMeSomething
        Return Me.GiveMeANewFoo()
    End Function

End Class

Dim oldFoo As Foo = New Foo()
Dim newFoo As Foo = oldFoo.GiveMeANewFoo() 
'                   IFoo(Of Foo).GiveMeSomething | Foo.GiveMeANewFoo

Dim oldFoo As IFoo(Of Foo) = New Foo()
Dim newFoo As Foo = oldFoo.GiveMeSomething() 
'                   IFoo(Of Foo).GiveMeSomething | Foo.GiveMeANewFoo

Dim oldFoo As IFoo = New Foo()
Dim newFoo As Object = oldFoo.GiveMeSomething() 
'                      IFoo.GiveMeSomething | Foo.GiveMeANewFooInternal