关于delegate的例子

边走边看

示例一：委托被同时映射到静态方法和实例方法，并分别返回特定的信息
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class delegate1 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        SampleClass sc = new SampleClass();
        // Map the delegate to the instance method:
        Del d = sc.InstanceMethod;
        d();
        // Map to the static method:
        d = SampleClass.StaticMethod;
        d();
    }
}
delegate void Del();
class SampleClass
{
    public void InstanceMethod()
    {
        HttpContext.Current.Response.Write("A message from the instance method.");
    }
    static public void StaticMethod()
    {
        HttpContext.Current.Response.Write("A message from the static method.");
    }
}
示例二
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
delegate void Del(int i, double j);
public partial class _Default :Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {

            Del d = MultiplyNumbers;
            Response.Write("Invoking the delegate using 'MultiplyNumbers':");
            for (int i = 1; i <= 5; i++)
            {
                d(i, 2);
            }
        }
    }
    protected void MultiplyNumbers(int m, double n)
    {
        HttpContext.Current.Response.Write(m * n + " ");
    }
   
}

鸥飞007

楼主，你写得实在是太好了。我惟一能做的，就只有把这个帖子顶上去这件事了