匿名方法 Anonymouse Method

最新推荐文章于 2021-08-26 15:53:31 发布

转载最新推荐文章于 2021-08-26 15:53:31 发布 · 97 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/flaaash/archive/2013/05/02/3054997.html

本文通过一个C#示例程序介绍了匿名方法的应用及对象初始化语法。代码展示了如何使用匿名方法为按钮点击事件和定时器事件添加处理逻辑，并演示了如何用对象初始化语法创建窗体和按钮。

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DEMO: Object Initializer, Anonymouse Method.

using System;
using System.Windows.Forms;

public class MyClass
{
    public static void Main()
    {
        Button btnHello = new Button();
        btnHello.Text = "&Hello";
        btnHello.Click += delegate{//Anonymouse Method
            MessageBox.Show("Yes! It's the Anonymouse Method!");
        };

        Form form = new Form{Height=255, Width=255, //Object Initializer
            MaximizeBox=false, FormBorderStyle = FormBorderStyle.FixedSingle};
        form.MouseMove += delegate(object Sender, MouseEventArgs e)
        {//delegate{        //Anonymouse Method with Parameters
            form.BackColor = System.Drawing.Color.FromArgb(e.X<0?0:e.X,e.Y<0?0:e.Y,255);
        };

        Timer tmr = new Timer{ Enabled = true, Interval = 1000};
        tmr.Tick += delegate{
            form.Text = DateTime.Now.TimeOfDay.ToString();
        };

        form.Controls.Add(btnHello);
        Application.Run(form);
    }
}

上面代码经过Reflector反编译以后，稍加修改也能运行！看看操蛋的操作符吧 =>

using System;
using System.Drawing;
using System.Windows.Forms;

public class MyClass
{
    public static void Main()
    {
        Button button = new Button {
            Text = "&Hello"
        };
        button.Click += (param0, param1) => MessageBox.Show("Yes! It's the Anonymouse Method!");
        Form form = new Form {
            Height = 0xff,
            Width = 0xff,
            MaximizeBox = false
        };
        form.MouseMove += (Sender, e) => {form.BackColor = Color.FromArgb(e.X, e.Y, 0xff);};
        Timer timer = new Timer {
            Enabled = true,
            Interval = 0x3e8
        };
        timer.Tick += (param0, param1) => {form.Text = DateTime.Now.TimeOfDay.ToString();};
        form.Controls.Add(button);
        Application.Run(form);
    }
}

再来看看ILDASM反编译的结果:注意类的嵌套,再有就是方法名称<Main>b_4类似的命名是错误的。

转载于:https://www.cnblogs.com/flaaash/archive/2013/05/02/3054997.html