c# virtual 关键字 虚方法

1、简单的说,虚方法就是可以被子类重写的方法,如果子类重写了虚方法,那么运行时将使用重写后的逻辑,如果没有重写,则使用父类中虚方法的逻辑

 class Program
    {
        static void Main(string[] args)
        {
            Person per = new Person();
            Police pol = new Police();
            Doctor doc = new Doctor();
            Teacher tea = new Teacher();
            per.Working();
            pol.Working();
            doc.Working();
            tea.Working();
            Console.ReadKey();

        }
    }

    class Person
    {
        public virtual void Working()
        {
            Console.WriteLine("我是人类,有多种职业!");
        }

    }

    class Police : Person
    {
        public override void Working()
        {
            Console.WriteLine("我是警察,治安保民!");
        }
    }

    class Doctor : Person
    {
        public override void Working()
        {
            Console.WriteLine("我是医生,治病救人!");
        }
    }
    class Teacher : Person
    {
        public override void Working()
        {
            Console.WriteLine("我是教师,教书育人!");
        }
    }

 

posted @ 2021-03-26 10:38  摩诘  阅读(77)  评论(0编辑  收藏  举报