namespace 选取
{
    class Program
    {
        #region 定义属性
        public string Name { get; set; }
        public int BianHao { get; set; }
        #endregion
        //Program类的构造函数

        public Program(string name, int bianHao)
        {
            this.Name = name;
            this.BianHao = bianHao;
        }
    }
    class List
    {
        public void list()
        {
            //定义list集合
            List<Program> messages = new List<Program>       //
                {
                   new Program("张三",1),
                   new Program("李四",2)
                };

            string message = "";
            foreach (var item in messages)  //厉遍循环输出messages集合元素  
            {
                message += item.ToString() + "\n\n";
            }
            Console.WriteLine(message);

        }
        class Test
        {

            static void Main(string[] args)
            {
                List list = new List();
                list.list();
                Console.ReadLine();
            }
        }
    }
}
在自学C#！！为什么每次调试输出的都是‘选取.Program'.应该输出‘张三，1和李四，2’才是。想得头大也搞不明白，，希望大家指点！指点！！谢谢

你必须重写“ToString"的方法，比如这个例子:

class Program
{
    #region 定义属性
    public string Name { get; set; }
    public int BianHao { get; set; }
    #endregion
    //Program类的构造函数

    public override string ToString()
    {
        return string.Format("({0},{1})", Name, BianHao);
    }

    public Program(string name, int bianHao)
    {
        this.Name = name;
        this.BianHao = bianHao;
    }
}

2楼正解

原来还要重写一个带返回值的方法
o0K了！！谢谢了！！