第六章 继承和多态 上机1

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

namespace MyOffice
{
   public class Employee
    {
       public Employee()
       {
           Console.WriteLine("我是Employee无参构造函数");
       }

       public Employee(string id, string name, int age, Gender g)
       {
           Console.WriteLine("我是Employee带参构造函数");
           this.ID = id;
           this.Name = name;
           this.Age = age;
           this.Gender = g;
       }
        /// <summary>
        /// 工号
        /// </summary>
        protected string ID { get; set; }//属性

        /// <summary>
        /// 年龄
        /// </summary>
        protected int Age { get; set; }

        /// <summary>
        /// 姓名
        /// protected 当前类和子类可以访问
        /// </summary>
        protected string Name { get; set; }

        /// <summary>
        /// 性别
        /// </summary>
        protected Gender Gender { get; set; }
    }
}

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

namespace MyOffice
{
    /// <summary>
    /// 项目经理类
    /// </summary>
    class PM:Employee
    {
        //参数的类型\个数\顺序要一致
        public PM(string n, string i, int a, Gender g, int year)
            :base(i,n,a,g)
        {
            Console.WriteLine("我是PM带参构造函数");
            ////父类的公共属性
            //this.Name = name;
            //this.ID = id;
            //this.Age = age;
            //this.Gender = g;
            //自己特有的属性
            this.YearOfExperience = year;
        }

        /// <summary>
        /// 资历
        /// </summary>
   
        public int YearOfExperience { get; set; }
        /// <summary>
        /// 问好
        /// </summary>
        /// <returns>问好的内容</returns>
        public string SayHi() 
        {
            string message;
            message = string.Format(
                "大家好，我是 {0} ，今年 {1} 岁，项目管理经验 {2}年。",
                base.Name, base.Age, this.YearOfExperience
            );
            return message;
        }

        /// <summary>
        /// 项目经理评分
        /// </summary>
        /// <param name="se"></param>
        public void Judge(SE se, String assess, int score)
        {
            se.Assess = assess;
            se.Score = score;
        }
    }
}

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

namespace MyOffice
{
    
    /// <summary>
    /// 程序员类
    /// </summary>
    public class SE:Employee
    {
        //base() 隐式调用父类的无参构造函数
        public SE(string id,string name,int age,Gender g,int pop)
            :base(id,name,age,g)//显式调用父类带参构造函数
        {
            Console.WriteLine("我是SE带参构造函数");
            ////父类的公共属性
            //this.ID = id;
            //this.Name = name;
            //this.Age = age;
            //this.Gender = g;
            //自己特有属性
            this.Popularity = pop;
        }

        /// <summary>
        /// 人气值

        /// </summary>
        private int _popularity = 0;

        public int Popularity
        {
            get { return _popularity; }
            set { _popularity = value; }
        }

        /// <summary>
        /// 经理年度评分
        /// </summary>
        private int _score = 0;

        public int Score
        {
            get { return _score; }
            set { _score = value; }
        }

        /// <summary>
        /// 经理评价
        /// </summary>
        private String _assess = "未评价";

        public String Assess
        {
            get { return _assess; }
            set { _assess = value; }
        }

        
        public string SayHi() 
        {
            string message = string.Format("大家好，我是 {0}, 今年 {1}岁，工号是 {2}，我的人气值高达 {3}!",
                base.Name,base.Age,base.ID,this.Popularity);
            return message;
        }
    }
}

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

namespace MyOffice
{
    class CEO:Employee
    {
        public CEO():base()//调用父类的无参构造函数
        {

        }
    }
}

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

namespace MyOffice
{
    /// <summary>
    /// 性别枚举
    /// </summary>
    public enum Gender
    {
        male, 
        female
    }
}

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

namespace MyOffice
{
    class Program
    {
        static void Main(string[] args)
        {
            //程序员对象
            SE se = new SE("111", "张三", 20, Gender.male, 99);
            
            Console.WriteLine(se.SayHi());

            PM pm = new PM("张经理", "112", 35, Gender.male, 10);
            Console.WriteLine(pm.SayHi());

             Console.ReadLine();
        }
    }
}