[ComVisible(true)]
public class EventArgs
{
//
// 摘要:
// Provides a value to use with events that do not have event data.
public static readonly EventArgs Empty;
//
// 摘要:
// Initializes a new instance of the System.EventArgs class.
public EventArgs();
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace DelegateIsEventSignature
{
class Program
{
static void Main(string[] args)
{
Person p1 = new Person();
p1.DoSpeakEvents += SlowSpeak;
p1.DoSpeakEvents += LoudlySpeak;
p1.DoIt();
Console.ReadKey();
}
static void SlowSpeak(object a, EventArgs e)
{
Console.WriteLine("asdfasdfasdf "+a.ToString());
}
static void LoudlySpeak(object a,EventArgs e)
{
Console.WriteLine("i am louderly speak " + a.ToString());
}
}
public class Person
{
public delegate void Speak(object o, EventArgs e);
public event Speak DoSpeakEvents;
//可以写成下面的这种格式，就不用写delegate了，简写模式
public EventHandler<EventArgs> TestSpeak;
//DoIt相当于Nofity，通知所有的挂载函数
public void DoIt()
{
DoSpeakEvents(this, EventArgs.Empty);
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace DelegateIsCallBackFunction
{
class Program
{
static void Main(string[] args)
{
Person p1 = new Person();
p1.Talk(SlowSpeak);
Console.ReadKey();
}
static void SlowSpeak(int i)
{
Console.WriteLine(i+" i am slowly speak"+i);
}
}
public class Person
{
public delegate void Speak(int i);
public void Talk(Speak speak)
{
for (int i = 0; i < 50; i++)
{
speak(i);
}
}
}
}