代码1：
public class BanJi
{
    private int number;
    private string director;
    private string monitor;
    private string year;
   

    public int Number
    {
        get { return number; }
        set { number = value; }
    }

    public string Director
    {
        get { return director; }
        set { director = value; }
    }
    public string Monitor
    {
        get { return monitor; }
        set { monitor = value; }
     }
    public string Year
    {
        get { return year; }
        set { year = value; }
    }
   
    public BanJi(int number, string director, string monitor, string year)
    {
        Number = number;
        Director = director;
        Monitor = monitor;
        Year = year;
    }
    public override string  ToString()
    {
          return string.Format("Number:｛0｝\nDirectorn:｛1｝\nMonitor:｛2｝\nYear:｛3｝",Number,Director,Monitor,Year);
    }

}



代码2：
using System;
public class xoxo
{
    public static int x;//这句话有什么用
    public static void Main()
    {
        BanJi b23 = new BanJi( 0, "", "", "");
        b23.Number = 27;
        b23.Director= "王毅";
        b23.Monitor = "李峰";
        b23.Year = "2011级";
        Console.WriteLine(b23.ToString());

    }
}

得到的却是：

求高手解。。

        static void Main(string[] args)
        {
            BanJi b23 = new BanJi();
            b23.Number = 27;
            b23.Director = "王毅";
            b23.Monitor = "李峰";
            b23.Year = "2011级";
            
            Console.WriteLine(b23.ToString());
        }


        public class BanJi
        {
            int number;
            string director;
            string monitor;
            string year;


            public int Number
            {
                get { return number; }
                set { number = value; }
            }

            public string Director
            {
                get { return director; }
                set { director = value; }
            }
            public string Monitor
            {
                get { return monitor; }
                set { monitor = value; }
            }
            public string Year
            {
                get { return year; }
                set { year = value; }
            }

            public virtual void Banji( int number, string director, string monitor, string year)
            {
                Number = number;
                Director = director;
                Monitor = monitor;
                Year = year;

               
            }
            public override string ToString()
             {

                 return string.Format("Number:{0}\nDirectorn:{1}\nMonitor:{2}\nYear:{3}", Number, Director, Monitor, Year);
                 
               

             }
            

        }


这个把括号的参数去掉，如果要这样需要写构造函数

嗯··谢谢。  我刚刚也发现咯。  感谢！  以后多交流哈

恩，多多交流

还有注意返回值

嗯，我多菜的。
 public static int x;
这句怎么意思？代码2里有

公共静态字段

就是数据成员