The difference between the override of C # Fundamentals and New

Override

• Override is used by derived classes to override base class methods. Call a derived class method, if you want to call the base class method with the base keyword
• Override cannot override a non-virtual method or a static method.
• Override overrides must be decorated with an abstract, override, Virtrual method.

New

• New is a derived class used to hide a base class method, and the base class method is not seen in a derived class, but it is called a method of the base class.
• If you want to hide a base class method in a derived class without using the new keyword without the new keyword, a warning will appear at compile time to indicate that if you want to hide a method in the base class, use the New keyword.
• New can hide a common method in a base class or it can be a virtual method.
• If the new method is decorated with private in a derived class, only the method in the base class is hidden in the derived class, except that the method in the base class is not hidden from the derived class;
• If a method in a base class is hidden in a derived class, in the derived class of that derived class, the hidden of the base class method is continued for that derived class.

  Public classProgram {Static voidMain (string[] args) {A A=NewA ();            A.test (); b b=NewB ();            B.test (); A C=NewB ();            C.test (); A D=NewC ();            D.test ();        Console.ReadLine (); }    }     Public classA { Public Virtual voidTest () {Console.WriteLine ("A Test ()"); }    }     Public classb:a {Private New voidTest () {Console.WriteLine ("b Test ()"); }    }     Public classc:b { Public Override voidTest () {Console.WriteLine ("C Test ()"); }    }

The difference between the override of C # Fundamentals and New