C#进阶学习--抽象方法(abstract)

    public abstract class Person
    {
        public string Name { get; set; }
        public int age { set; get; }
        public void SayHello()//普通方法
        {
            Console.WriteLine("我是" + this.Name + ",我的年龄是" + this.age);
        }
        public virtual int getAge()//虚方法
        {
            return this.age;
        }
        public abstract string getName();
    }

 public interface IAction
    {
        void Run();
        string Eat(string food);
    }

 public class Student : Person, IAction
    {
        public override string getName()
        {
            return "学生姓名为" + this.Name;
        }
        public string Eat(string food)
        {
            return "学生在吃" + food;
        }
        public void Run()
        {
            Console.WriteLine("学生在跑");
        }
    }