Question

c#测试题，跪求大佬

Answer 1

using System;

namespace test

{

    public abstract class Animal

    {

        public virtual void eating(){}

        public virtual void showing(){}

        public virtual void running(){}

    }

    public class Cat : Animal

    {

        public override void eating()

        {

            Console.WriteLine("猫吃老鼠");

        }

        public override void showing()

        {

            Console.WriteLine("喵喵叫");

        }

        public override void running()

        {

            Console.WriteLine("轻轻地走");

        }

    }

    class Class1

    {

        static void Main(string[] args)

        {

            Cat xiaohua = new Cat();

            xiaohua.eating();

            xiaohua.showing();

            xiaohua.running();

        }

    }

}

Answer 2

@1:
public abstract class Animal
{
public virtual void eating（）{
Console.write("吃");

};
public virtual void showing(){
Console.write("自我介绍");
};
public virtual void running(){
Console.write("跑");
};
}
@2:cat（猫）继承Animal(动物)类，java中是用关键字extends，C#中直接在类名后用冒号"："就表示继承，例：

public class Cat : Animal{

public override void eating（）{
Console.write("猫吃老鼠");

};
public override void showing（）{
Console.write("喵喵叫");

};
public override void running(){
Console.write("轻轻地走");
};
}
@3：
public static void Main(string[] args)
{
Cat xiaohua=new Cat();
xiaohua.eating();
xiaohua.showing();
xiaohua.running();
}