关键字new

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using System.Threading.Tasks;
  6 
  7 namespace _10关键字_new
  8 {
  9     class Program
 10     {
 11         static void Main(string[] args)
 12         {
 13             Reporter rep = new Reporter("记者", 11, '男', "偷拍");
 14             rep.SayHello();
 15             rep.Test();
 16             
 17             Console.ReadKey();
 18         }
 19     }
 20 
 21     public class Person
 22     {
 23         private string _name;
 24         public string Name
 25         {
 26             get { return _name; }
 27             set { _name = value; }
 28         }
 29         private int _age;
 30         public int Age
 31         {
 32             get { return _age; }
 33             set { _age = value; }
 34         }
 35         private char _gender;
 36         public char Gender
 37         {
 38             get { return _gender; }
 39             set { _gender = value; }
 40         }
 41 
 42 
 43         public Person(string name, int age, char gender)
 44         {
 45             this.Name = name;
 46             this.Age = age;
 47             this.Gender = gender;
 48         }
 49 
 50         public void Test()
 51         {
 52             Console.WriteLine("测试");
 53         }
 54 
 55         public void SayHello()
 56         {
 57             Console.WriteLine("大家好，我是人类");
 58         }
 59     }
 60 
 61 
 62     public class Reporter : Person
 63     {
 64         public Reporter(string name, int age, char gender, string hobby)
 65             : base(name, age, gender)
 66         {
 67             this.Hobby = hobby;
 68         }
 69 
 70 
 71         private string _hobby;
 72 
 73         public string Hobby
 74         {
 75             get { return _hobby; }
 76             set { _hobby = value; }
 77         }
 78 
 79         public void ReporterSayHello()
 80         {
 81             Console.WriteLine("我叫{0},我是一名狗仔，我的爱好是{1}，我是{2}生，我今年{3}岁了", this.Name, this.Hobby, this.Gender, this.Age);
 82         }
 83 
 84 
 85         public new void SayHello()
 86         {
 87             Console.WriteLine("大家好，我是记者");
 88         }
 89 
 90     }
 91 
 92 
 93     public class Programmer : Person
 94     {
 95         private int _workYear;
 96 
 97         public int WorkYear
 98         {
 99             get { return _workYear; }
100             set { _workYear = value; }
101         }
102 
103         public void ProgrammerSayHello()
104         {
105             Console.WriteLine("我叫{0}，我是一名程序猿，我是{1}生，我今年{2}岁了，我的工作年限是{3}年", this.Name, this.Gender, this.Age, this.WorkYear);
106         }
107 
108 
109         public Programmer(string name, int age, char gender, int workYear)
110             : base(name, age, gender)
111         {
112             this.WorkYear = workYear;
113         }
114 
115 
116         public new void SayHello()
117         {
118             Console.WriteLine("大家好，我是程序员");
119         }
120     }
121 }