从类继承并实现多个接口

public class LivingBeing
{
    string Name { get; set; }
}

public interface IAnimal 
{
    bool HasHair { get; set; }
}

public interface INoiseMaker
{
    string MakeNoise();
}

//Note that in C#, the base class name must come before the interface names
public class Cat : LivingBeing, IAnimal, INoiseMaker
{
    public Cat() 
    {
        Name = "Cat";
        HasHair = true;
    }

    public bool HasHair { get; set; }

    public string Name { get; set; }

    public string MakeNoise()
    {
        return "Nyan";
    }
}