using System;
public class Desk//基類Desk
{
 protected int length;//保護(hù)成員
 protected int width;
 protected int height;
 //類Desk的構(gòu)造函數(shù)
 public Desk( )
 {
 length = 0;
 width = 0;
 height = 0;
 }
 //設(shè)置Desk的信息
 public void SetInfo( int Len, int Wid, int Hei )
 {
 length = Len;
 width = Wid;
 height = Hei;
 }
 //打印Desk的參數(shù)信息
 public void ShowInfo( )
 {
 Console.WriteLine("Length={0} \t Width={1} \t Height={2}", length, width, height);
 }
}
public class Furniture : Desk//定義基類Desk的派生類Furniture
{
 private int price;//私有成員
 //類Furniture的構(gòu)造函數(shù)
 public Furniture ( )
 { //這里會隱式調(diào)用基類Desk的構(gòu)造函數(shù)
 //Desk( );//若顯示調(diào)用會出現(xiàn)錯(cuò)誤
 price = 0;
 }
 //重載該類的SetInfo函數(shù)
 public void SetInfo( int Len, int Wid, int Hei, int Pri)
 {
 length = Len;
 width = Wid;
 height = Hei;
 price = Pri;
 }
 //新增的函數(shù)用以設(shè)置價(jià)格
 public void SetPri( int Pri)
 {
 price = Pri;
 }
 //重定義ShowInfo函數(shù)
 public new void ShowInfo( ) //必須加上關(guān)鍵字new，否則會引發(fā)一個(gè)生成錯(cuò)誤
 {
 Console.WriteLine("Length={0} \t Width={1} \t Height={2} \t Price={3}",length, width, height, price);
 }
}
class Test
{
 public static void Main()
 {
 Furniture fur1 = new Furniture( ); //隱式調(diào)用構(gòu)造函數(shù)
 Console.WriteLine("Fur1初始化后的值為：");
 fur1.ShowInfo( ); //顯示家具信息
 fur1.SetInfo(80,50,60,350);
 Console.WriteLine("Fur1設(shè)置具體信息后為：");
 fur1.ShowInfo( );
 fur1.SetPri(288); //重置家具價(jià)格
 Console.WriteLine("Fur1價(jià)格大優(yōu)惠：");
 fur1.ShowInfo( );
 }
}