c#.net中类的覆写(OverRide)：
public class Mybase
{
public virtual string Meth1()
{
return "Mybase-Meth1";
}
public virtual string Meth2()
{
return "Mybase-Meth2";
}
public virtual string Meth3()
{
return "Mybase-Meth3";
}
}
class MyDerived : Mybase
{
// Overrides the virtual method Meth1 using the override keyword:
public override string Meth1()
{
return "MyDerived-Meth1";
}
// Explicitly hide the virtual method Meth2 using the new
// keyword:
public new string Meth2()
{
return "MyDerived-Meth2";
}
// Because no keyword is specified in the following declaration
// a warning will be issued to alert the programmer that
// the method hides the inherited member Mybase.Meth3():
public string Meth3()
{
return "MyDerived-Meth3";
}
public static void Main()
{
MyDerived mD = new MyDerived();
Mybase mB = (Mybase) mD;
System.Console.WriteLine(mB.Meth1());
System.Console.WriteLine(mB.Meth2());
System.Console.WriteLine(mB.Meth3());
}
}
