C#2.0技术探讨(1):匿名方法

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匿名方法: 通过+= 后面跟delegate{}; 以内联方式编码

匿名方法是.NET2.0特有的，而不是1.1具有的（给学员演示的时候要注意）

许明会 2007年12月10日 23:35:30

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using System;

using System.Windows.Forms;

namespace xumh

{

public class myClass:Form

{

private Button btnHello;

private Label lblTime;

private Timer tmr;

public myClass()

{

btnHello = new Button();

btnHello.Text = "问好";

btnHello.Click += delegate{ //测试匿名方法

MessageBox.Show("Yes,It's Anonymouse method!");

};

btnHello.Location = new System.Drawing.Point(100,80);

this.Controls.Add(btnHello);

//lblTime

lblTime = new Label();

lblTime.Location = new System.Drawing.Point(100,120);

lblTime.Size = new System.Drawing.Size(140,20);

this.Controls.Add(lblTime);

//tmr

tmr = new Timer();

tmr.Enabled = true;

tmr.Interval = 1000;

tmr.Tick += delegate{ //测试匿名方法

lblTime.Text = DateTime.Now.ToString();

};

//带参数的匿名方法

this.MouseMove += delegate(object Sender,MouseEventArgs e){

this.Text = string.Format("({0},{1})",e.X,e.Y);

this.Opacity = double.Parse( e.X.ToString()) /this.Width;

};

}

};

public class runMyApp

{

static void Main()

{

Application.Run(new myClass());

}

};

}