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1 public class studyMutils 2 { 3 public static void Main() 4 { 5 People p = new Student(); 6 p.Watch(); 7 p.Read(); 8 } 9 } 10 public class People 11 { 12 13 public void Say() 14 { 15 Console.WriteLine("今天好累啊"); 16 } 17 public virtual void Watch() 18 { 19 Console.WriteLine("我喜欢看动画片"); 20 } 21 public virtual void Read() 22 { 23 24 Console.WriteLine("我喜欢读读者"); 25 } 26 } 27 public class Teacher : People 28 { 29 public void Run() 30 { 31 Console.WriteLine("hello"); 32 } 33 public override void Watch() 34 { 35 Console.WriteLine("我喜欢看武侠片"); 36 } 37 public override void Read() 38 { 39 40 Console.WriteLine("我喜欢读哲学"); 41 } 42 } 43 public class Student : Teacher 44 { 45 public override void Watch() 46 { 47 Console.WriteLine("我喜欢看警匪片"); 48 } 49 50 }