C#继承机制

 1 using System;
 2  
 3 public class Parent
 4 {
 5     string parentString;
 6     public Parent()
 7     {
 8         Console.WriteLine("Parent Constructor.");
 9     }
10     public Parent(string myString)
11     {
12         parentString = myString;
13         Console.WriteLine(parentString);
14     }
15     public void print()
16     {
17         Console.WriteLine("I'm a Parent Class.");
18     }
19 }
20  
21 public class Child : Parent
22 {
23     public Child() : base("From Derived")
24     {
25         Console.WriteLine("Child Constructor.");
26     }
27     public new void print()
28     {
29         base.print();
30         Console.WriteLine("I'm a Child Class.");
31     }
32     public static void Main()
33     {
34         Child child = new Child();
35         child.print();
36         ((Parent)child).print();
37     }
38 }
注意new，base。