Events Sample Code(2)

using System;

namespace ConsoleApp_CSXP
{

class 小弟
{
//1.聲明事件委託
public delegate void 被人扁(object sender, EventArgs e);

//2.聲明事件實例
public event 被人扁 挨扁;

//3.包含事件
private void 挨扁了(EventArgs e)
{
if(this.挨扁 != null)
this.挨扁(this, e);
}

//4.觸發事件
public void 被扁()
{
Console.WriteLine("被扁ing...");
this.挨扁了(EventArgs.Empty);
}
}

class 我
{
private 小弟 我小弟 = null;

public 我(小弟 小小弟)
{
this.我小弟 = 小小弟;
//註冊事件
this.我小弟.挨扁 += new 小弟.被人扁(this.担心);
}

public void 担心(object sender, EventArgs e)
{
Console.WriteLine("我担心");
}
}

}

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