C# 属性

C# 属性

访问器（Accessors）

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    class Student
    {
        private string code = "N.A";
        private string name = "not known";
        private int age = 0;
        public string Code
        {
            get
            {
                return code;
            }
            set
            {
                code = value;
            }
        }
        // 声明类型为 string 的 Name 属性
        public string Name
        {
            get
            {
                return name;
            }
            set
            {
                name = value;
            }
        }
        // 声明类型为 int 的 Age 属性
        public int Age
        {
            get
            {
                return age;
            }
            set
            {
                age = value;
            }
        }
        public override string ToString()
        {
            return "Code = " + Code + ", Name = " + Name + ", Age = " + Age;
        }
    }
    class Test
    {
        public static void Main()
        {
            //创建一个新的Student对象
            Student s = new Student();
            //设置student的code、name、age
            s.Code = "001";
            s.Name = "Sofiya";
            s.Age = 1;
            Console.WriteLine("Student Info:{0}", s);
            //添加年龄
            s.Age += 8;
            Console.WriteLine("Student Info:{0}", s);
            Console.ReadKey();
        }
    }
}

运行结果

抽象属性（Abstract Properties）

抽象类可拥有抽象属性，这些属性应在派生类中被实现。

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    public abstract class Person
    {
        public abstract string Name
        {
            get;
            set;
        }
        public abstract int Age
        {
            get;
            set;
        }
    }

    class Student:Person
    {
        private string code = "N.A";
        private string name = "not known";
        private int age = 0;
        public string Code
        {
            get
            {
                return code;
            }
            set
            {
                code = value;
            }
        }
        // 声明类型为 string 的 Name 属性
        public override string Name
        {
            get
            {
                return name;
            }
            set
            {
                name = value;
            }
        }
        // 声明类型为 int 的 Age 属性
        public override int Age
        {
            get
            {
                return age;
            }
            set
            {
                age = value;
            }
        }
        public override string ToString()
        {
            return "Code = " + Code + ", Name = " + Name + ", Age = " + Age;
        }
    }
    class Test
    {
        public static void Main()
        {
            //创建一个新的Student对象
            Student s = new Student();
            //设置student的code、name、age
            s.Code = "001";
            s.Name = "Sofiya";
            s.Age = 1;
            Console.WriteLine("Student Info:{0}", s);
            //添加年龄
            s.Age += 8;
            Console.WriteLine("Student Info:{0}", s);
            Console.ReadKey();
        }
    }
}

运行结果