抽象类

     class Test
     ｛

           public static void Main()
           {

 
             Console.Write(StudentInfo.Name);//输出ligang
             Console.Read();
            }
          
         
        }

    
//静态方法一般使用静态成员
实例方法可以使用静态方法，而静态方法不能使用实例方法
        static class StudentInfo
        {
            private static string name = "ganquanfu";
            public static string Name
            {
                get { return StudentInfo.name; }
                set { StudentInfo.name = value; }
            }
            static StudentInfo()//静态构造函数用于初始化静态成员，不能有任何的修饰符
            {
                name = "ligang";
            }

 
        }

 

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConAttribute
{

    //注意抽象类可以没有抽象方法，但是反过来有抽象方法的类必须添加abstract，表示该类是抽象类

     abstract class Animal
    {
        protected abstract void Show();//在实现该抽象方法的时候，修饰符也不要修改。
        public void ValidateValue(object o)
        {
            Show();
        }
    }

     class People : Animal
     {
         public People()
         {

         }

         protected override void Show()
         {
             Console.WriteLine("People");
         }

     }

     class Manager : People
     {

         /*//如何改为以下的代码后，结果将输出 People
         protected new void Show()
         {
             Console.WriteLine("manager");
         }*/
         protected override void Show()
         {
             Console.WriteLine("manager");
         }
     }

     class Test
     {

         public static void Main(string[] args)
         {
             Manager manager = new Manager();
             manager.ValidateValue(new object());//输出manager
             Console.ReadKey();
         }
     }

}

 

 

 

 

        public static void Main(string[]args)
        {
          

            Person student = new Person();
            student.Name = "甘全福";
            student.Age = 23;
            Person teacher = student.Clone();

            Console.WriteLine("姓名:"+teacher.Name + "年龄:" + teacher.Age);
            Console.WriteLine("克隆成功!");
         
            Console.Read();
        }

 

        class Person
        {
            public string Name { get; set; }
            public int Age { get; set; }

            public Person()
            {
               
            }

            public Person(string name,int age)
            {
                this.Name = name;
                this.Age = age;
            }

            public Person Clone()
            {
                Person p = new Person();
                p.Name = this.Name;
                p.Age = this.Age ;
                return p;
            }

        }