VB.Net Tutorial/Class Module/Destructor — различия между версиями
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Текущая версия на 12:55, 26 мая 2010
Destructor in three levels
Class A
Public Sub New()
Console.WriteLine("In class A constructor")
End Sub
Protected Overrides Sub Finalize()
Console.WriteLine("In class A destructor")
MyBase.Finalize()
End Sub
End Class
Class B
Inherits A
Public Sub New()
Console.WriteLine("In class B constructor")
End Sub
Protected Overrides Sub Finalize()
Console.WriteLine("In class B destructor")
MyBase.Finalize()
End Sub
End Class
Class C
Inherits B
Public Sub New()
Console.WriteLine("In class C constructor")
End Sub
Protected Overrides Sub Finalize()
Console.WriteLine("In class C destructor")
MyBase.Finalize()
End Sub
End Class
Module Module1
Sub Main()
Dim objSample As New C()
End Sub
End Module
In class A constructor In class B constructor In class C constructor In class C destructor In class B destructor In class A destructor
Inherit destructor
Class Base
Public Sub New()
Console.WriteLine("The Base Class Constructor is Running")
End Sub
Protected Overrides Sub Finalize()
Console.WriteLine("The Base Class Destructor is Running")
MyBase.Finalize()
End Sub
End Class
Class Derived
Inherits Base
Public Sub New()
Console.WriteLine("The Derived Class Constructor is Running")
End Sub
Protected Overrides Sub Finalize()
Console.WriteLine("The Derived Class Destructor is Running")
MyBase.Finalize()
End Sub
End Class
Module Module1
Sub Main()
Dim Sample As New Derived()
End Sub
End Module
The Base Class Constructor is Running The Derived Class Constructor is Running The Derived Class Destructor is Running The Base Class Destructor is Running