using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication2 { class Program { static void Main(string[] args) { //contact ct = new contact(); //抽象类 class1 ct1 = new class1(); class2 ct2 = new class2(); contact ct3 = new class1(); contact ct4 = new class2(); ct1.prinf(); ct2.prinf(); ct3.prinf(); ct4.prinf(); //int i = System.Console.Read(); //string str = System.Console.ReadLine(); //System.Console.Read(); System.Console.ReadLine(); } abstract public class contact { public virtual void prinf() //关键字virtual { Console.WriteLine("这是虚方法"); } } public class class1 : contact { public override void prinf() //关键字override { Console.WriteLine("这是新的方法"); } } public class class2 : contact { public new void prinf() //关键字new { Console.WriteLine("这是另一个新的方法"); } } } }
运行结果如下: