C# 기초지식 편찬: 기초지식(3) 클래스 구조

            YSchool shool1 = new YSchool();

            shool1.ID = 1;

            shool1.Name = "清华附中";

            YSchool school2 = new YSchool();

            school2.ID = 2;

            school2.Name = "北师大附中";

  /// <summary>
    /// YSchool类的id和name是它的固有属性，它的值应该是确定的。
    /// 实例化的同时对属性赋初值，用到构造函数。
    /// </summary>
    public class YSchool
    {
        private int id = 0;

        private string name = string.Empty;

        public int ID
        {
            get
            {
                return this.id;
            }
        }

        public string Name
        {
            get
            {
                return name;
            }
        }
        /// <summary>
        /// 没有参数的构造器称之为“默认构造器”；如果没有写一个构造器，那么
        ///系统也会提供一个默认的构造器，所以说类至少有一个构造器；
        ///当然，如果系统提供的默认构造函数，则属性初值为声明时赋的初值，如果声明
        ///未赋初值，则是“类型默认值”，比如0或者null。
        /// </summary>
        public YSchool()
        {
            this.id = 0;

            this.name = @"清华附中";
        }
        /// <summary>
        /// 带有参数列表的构造函数，
        /// 属性的值就是传入的列表的值。
        /// </summary>
        /// <param name="id"></param>
        /// <param name="name"></param>
        public  YSchool(int id, string name)
        {
            this.id = id;

            this.name = name;
        }
        public  YSchool(int id)
        {
            this.id = id;

            this.name = @"陕科大附中";
        }
    }

   class Program
    {
        static void Main(string[] args)
        {
            YSchool shool1 = new YSchool();

            YSchool school2 = new YSchool(1, @"西工大附中");

            YSchool school3 = new YSchool(2);

            Console.ReadKey();
        }
    }

    string name = string.Empty;

        public YSchool()
        {

        }

        public YSchool()
        {
            this.id = 0;

            this.name = @"尚进";
        }