Shulou(Shulou.com)06/02 Report--

This article mainly introduces "how to understand C# Abstract Class". In daily operation, I believe many people have doubts about how to understand C# Abstract Class. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubt of "how to understand C# Abstract Class"! Next, please follow the editor to study!

The C # abstract class declares one (or more) methods or properties as abstract. Such methods do not have the implementation provided in the class that declares them, although a C# abstract class can also contain non-abstract methods, that is, an implementation has been provided for its methods. A C # abstract class cannot be instantiated directly, but can only be a derived class. Such a derived class must provide an implementation for all abstract methods and properties (using the override keyword) unless the derived member itself is declared abstract.

The following example declares an abstract Employee class. We also created a derived class called Manager, which provides an implementation of the abstract method show () defined in the Employee class:

Using System; public abstract class Employee {/ / abstract show method public abstract void show ();} / Manager class extends Employee public class Manager: Employee {string name; public Manager (string name) {this.name = name;} / / override the show method public override void show () {Console.WriteLine ("Name:" + name) }} public class CreateManager {public static void Main (string [] args) {/ / Create instance of Manager and assign it to an Employee reference Employee temp = new Manager ("John Chapman"); / / Call show method. This will call the show method of the Manager class temp.show ();}}

This code invokes the show () implementation provided by the Manager class and prints the employee's name on the screen.

At this point, the study on "how to understand C# abstract classes" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.