class1.cs

原代码详细说明是关于c++方面的希望可以帮助大家使用

using System;
class Animal
{
	protected double weight=100;
	public void Sleep()
	{
		Console.WriteLine("Sleeping");
	}
}
class Cat:Animal
{
	public void EatFish()
	{
		Console.WriteLine("Eat Fish");
	}
	public void GetWeight()
	{
		Console.WriteLine("{0}",weight);//派生类可以使用基类的保护成员
	}
}
class Dog:Animal
{
	public void EatBone()
	{
		Console.WriteLine("Eat Bone");
	}
	public void GetWeight()
	{
		Console.WriteLine("{0}",weight);
	}
}
class Exam2_9
{
	public static void Main()
	{
        Animal a=new Animal();
		a.Sleep();
        Cat c=new Cat();
		c.Sleep();
		c.EatFish();
		c.GetWeight();
		Dog d=new Dog();
		d.Sleep();
		d.EatBone();
		d.GetWeight();
        //Console.WriteLine("weight={0}",d.weight);//不能访问保护成员
	}
}