知识基础 -> 抽象类

void Main()
{
	Dog dog = new Dog();
	dog.Bark();
	Cat cat = new Cat();
	cat.Bark();
}

public abstract class Animal
{
	public abstract void Bark();
}

public class Dog : Animal
{
	public override void Bark()
	{
		Console.WriteLine("狗会汪汪叫");
	}
}

public class Cat : Animal
{
	public override void Bark()
	{
		Console.WriteLine("猫会喵喵叫");
	}
}

抽象类特点 -> 1. abstract关键字,不能有实现

       2. 不能被实例化

       3. 访问修饰符不能为private

标签：void,知识,基础,abstract,public,class,Animal,Bark,抽象类
来源： https://www.cnblogs.com/chengxunyuanxiaolv/p/16398528.html