学习笔记

1.事务和委托  实例

 public partial class MyEventAndDeletegate : Form
    {
        Myevent myevent = new Myevent();
        public MyEventAndDeletegate()
        {
            InitializeComponent();
            myevent.MyEvent += new Mydelegate(GetData_);
            myevent.GetData();
            if (true)
                myevent.GetData();
        }

        void GetData_()
        {
            throw new NotImplementedException();
        }
    }

  public delegate void Mydelegate();

    public class Myevent
    {
        public event Mydelegate MyEvent;
        public void GetData()
        {
            if (MyEvent != null)
            {
                MyEvent();
            }
        }
    }