类的概述
类的继承
using System;
namespace Test
{
class Program
{
static void Main(string[] args)
{
T1 t1 = new T1();
Console.WriteLine();
T4 t4 = new T4();
Console.WriteLine();
T5 t5 = new T5();
Console.WriteLine();
T6 t6 = new T6();
t6.P();
Console.WriteLine();
T7 t7 = new T7();
t7.P();
Console.WriteLine();
}
}
class T
{
public T()
{
Console.WriteLine("This is T");
}
public virtual void P()
{
Console.WriteLine("Here is P");
}
}
class T1 : T
{
public T1()
{
Console.WriteLine("This is T1");
}
}
abstract class T3 : T
{
public T3()
{
Console.WriteLine("This is T3");
}
}
class T4 : T3
{
public T4()
{
Console.WriteLine("This is T4");
}
}
interface I
{
}
interface I1
{
}
class T5 : T, I, I1
{
public T5()
{
Console.WriteLine("This is T5");
}
}
class T6 : T
{
public override void P()
{
base.P();
}
}
class T7 : T
{
public override void P()
{
Console.WriteLine("Here is new P");
}
}
}
结果：
This is T
This is T1
This is T
This is T3
This is T4
This is T
This is T5
This is T
Here is P
This is T
Here is new P