using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace MethodOverrideByNew{  public enum Genders {     Female=0,    Male=1  }  public class Person {    protected string _name;    protected int _age;    protected Genders _gender;    /// <summary>    /// 父類構(gòu)造函數(shù)    /// </summary>    public Person() {      this._name = "DefaultName";      this._age = 23;      this._gender = Genders.Male;    }    /// <summary>    /// 定義虛函數(shù)IntroduceMyself()    /// </summary>    public virtual void IntroduceMyself() {      System.Console.WriteLine("Person.IntroduceMyself()");    }    /// <summary>    /// 定義虛函數(shù)PrintName()    /// </summary>    public virtual void PrintName() {      System.Console.WriteLine("Person.PrintName()");    }  }  public class ChinesePerson :Person{    /// <summary>    /// 子類構(gòu)造函數(shù)，指明從父類無參構(gòu)造函數(shù)調(diào)用起    /// </summary>    public ChinesePerson() :base(){      this._name = "DefaultChineseName";    }    /// <summary>    /// 覆蓋父類方法IntroduceMyself，使用new關(guān)鍵字修飾虛函數(shù)    /// </summary>    public new void IntroduceMyself() {      System.Console.WriteLine("ChinesePerson.IntroduceMyself()");    }    /// <summary>    /// 重載父類方法PrintName，使用override關(guān)鍵字修飾虛函數(shù)    /// </summary>    public override void PrintName(){      System.Console.WriteLine("ChinesePerson.PrintName()");          }  }  class Program  {    static void Main(string[] args)    {      //定義兩個(gè)對象，一個(gè)父類對象，一個(gè)子類對象      Person aPerson = new ChinesePerson();      ChinesePerson cnPerson = new ChinesePerson();      //調(diào)用覆蓋的方法，父類對象不能調(diào)用子類覆蓋過的方法，只能調(diào)用自身的虛函數(shù)方法      aPerson.IntroduceMyself();         cnPerson.IntroduceMyself();      //調(diào)用重載方法，父類對象和子類對象都可以調(diào)用子類重載過后的方法      aPerson.PrintName();      cnPerson.PrintName();      System.Console.ReadLine();    }  }}