C# 语言特性系列(2) 多态性 Polymorphism

多态：

 1 public class Women

 2 {

 3     public void DoWork() { }

 4 }

 5 

 6 public class Girl : Women

 7 {

 8     public new void DoWork() { }

 9 }

 

 class Main

 {

       static void Main()

       {

           Girl B = new Girl();

           B.DoWork();  // 调Girl方法.

 

           Women A = (Women)B;

           A.DoWork();  // 调Women方法.

        }

 

 }