1 /*======父类的实例构造器是不能被子类所继承的==========*/
 2 using System;
 3 using System.Collections.Generic;
 4 using System.Linq;
 5 using System.Text;
 6 using System.Threading.Tasks;
 7 
 8 namespace 类的继承_类成员访问30_35构造器
 9 {
10     class Program
11     {
12         static void Main(string[] args)
13         {
14             Car car = new Car();
15             Console.WriteLine(car.Owner);
16         }
17     }
18 
19     class Vehicle
20     {
21         public Vehicle( string owner)
22         {
23             this.Owner = owner ;
24         }
25         public string Owner { get; set; }
26     }
27 
28     class Car : Vehicle
29     {
30         //法一 代码为  public Car():base ("N/A"){  this.Owner = "Car Owner";} 
31 
32         //方法一为   :base ("N/A") ，意思是当我们在调这个Vehicle构造器的时候，把"N/A"这个值传到构造器中，这就满足了Vehicle的签名
33         public Car() : base("N/A") { this.Owner = "Car Owner"; }
34 
35 
36 
37         //法二      //方法二为  Car类型的构造器也给它添加一个参数，
38         //public Car(string owner) ：base（owner）{  this.Owner =  Owner;}
39 
40         public Car(string owner) :base(owner){  this.Owner =  Owner;}
41        
42 
43     }
44 
45 }