C#继承中构造函数,成员变量的执行顺序

    public class Animal
    {
        static string baseClassName;
        protected string _skincolor;
        Instancevariable iv = new Instancevariable("父类实例成员变量");
        static Instancevariable siv = new Instancevariable("父类静态成员变量");
        static Animal()
        {
            baseClassName = "父类静态构造函数";
            Console.WriteLine(baseClassName);
        }

        public Animal()
        {
            _skincolor = "父类构造函数";
            Console.WriteLine(_skincolor);
        }

    }

    public class Instancevariable
    {
        public Instancevariable(string cls)
        {
            Console.WriteLine(cls);
        }
    }

    public class Horse : Animal
    {
        static string horseClassName;
        Instancevariable iv = new Instancevariable("子类实例成员变量");
        static Instancevariable siv = new Instancevariable("子类静态成员变量");
        public Horse()
            : base()
        {

            _skincolor = "子类类构造函数";
            Console.WriteLine(this._skincolor);
        }

        static Horse()
        {
            horseClassName = "子类静态构造函数";
            Console.WriteLine(horseClassName);
        }

    }

    class Program
    {
        static void Main(string[] args)
        {
            Horse h = new Horse();
            Console.ReadLine();
        }
    }