static void Main(string[] args)
{
Console.WriteLine("Client application started! ");
Thread.CurrentThread.Name = "Main Thread";
//实例化计算类
Calculator cal = new Calculator();
//定义委托变量
AddDelegate del = new AddDelegate(cal.Add);
//委托的异步调用
IAsyncResult asyncResult = del.BeginInvoke(2, 5, null, null);
//做某些其它的事情，模拟需要执行3秒钟
for (int i = 1; i <= 3; i++)
{
Thread.Sleep(TimeSpan.FromSeconds(i));
Console.WriteLine("{0}:Client executed {1} second(s).",
Thread.CurrentThread.Name, i);
}
//调用异步委托的结果
int rtn = del.EndInvoke(asyncResult);
Console.WriteLine("Result: {0} ", rtn);
//等待
Console.ReadKey();
}
static int GetReturn(IAsyncResult asyncResult)
{
AsyncResult result = (AsyncResult)asyncResult;
AddDelegate del = (AddDelegate)result.AsyncDelegate;
int rtn = del.EndInvoke(asyncResult);
return(rtn);
}
static void OnAddComplete(IAsyncResult asyncResult)
{
AsyncResult result = (AsyncResult)asyncResult;
AddDelegate del = (AddDelegate)result.AsyncDelegate;
string data = (string)asyncResult.AsyncState;
int rtn = del.EndInvoke(asyncResult);//执行EndInvoke时可能会抛出异常。需要放到try中执行
Console.WriteLine("{0}:Result,{1};Data:{2}\n", Thread.CurrentThread.Name, rtn, data);
}
/// <summary>
/// 异步回调函数
/// 调用del.BeginInvoke()后不再需要保存IAysncResult返回值，回调函数的参数里已经定义
/// </summary>
/// <param name="ar"></param>
public static void OnComplete(IAsyncResult ar)
{
AsyncResult result = (AsyncResult)ar;
AddDelegate del = (AddDelegate)result.AsyncDelegate;
string data = (string)ar.AsyncState;
int rtn = del.EndInvoke(ar);
Console.WriteLine("{0}: Result, {1}; Data: {2}\n", Thread.CurrentThread.Name, rtn, data);
}
public static void OnAddComplete(IAsyncResult asyncResult)
{
AsyncResult result = (AsyncResult)asyncResult;
AddDelegate del = (AddDelegate)result.AsyncDelegate;
string data = (string)asyncResult.AsyncState;
int run = del.EndInvoke(asyncResult);
Console.WriteLine("{0}：Result,{1};Data:{2}", Thread.CurrentThread.Name, run, data);
}
static void Main(string[] args)
{
int l = 3, r = 4;
AddDelegate add = new AddDelegate(Add);
IAsyncResult ar = add.BeginInvoke(l, r, null, null);
//while (!ar.IsCompleted) Thread.Sleep(10);
// or
ar.AsyncWaitHandle.WaitOne();
// write result in main thread
// if async delegate causes an exception it will become visible when EndInvoke is called
try
{
Console.WriteLine("Result is {0} ", add.EndInvoke(ar));
}
catch (Exception e) { Console.WriteLine(e.Message); }
}
//static void Main(string[] args)
//{
// Console.WriteLine("Client application started!\n");
// Thread.CurrentThread.Name = "Main Thread";
// Delegate_Three dt = new Delegate_Three();
// AddDelegate ad = new AddDelegate(dt.Add);
// AsyncCallback asy = new AsyncCallback(dt.complete);
// IAsyncResult asyncResult = ad.BeginInvoke(2, 5, asy, "On Complete");
// // 做某些其它的事情，模拟需要执行3 秒钟
// for (int i = 1; i <= 3; i++)
// {
// Thread.Sleep(TimeSpan.FromSeconds(i));
// Console.WriteLine("{0}: Client executed {1} second(s).",
// Thread.CurrentThread.Name, i);
// }
// Console.WriteLine("\nPress any key to exit...");
// Console.ReadLine();
//}
public void complete(IAsyncResult asyncResult)
{
//AsyncResult是IAsyncResult的子类
AsyncResult asy = (AsyncResult)asyncResult;
AddDelegate ad = (AddDelegate)asy.AsyncDelegate;
string data = (string)asy.AsyncState;
int result = 0;
try
{
result = ad.EndInvoke(asyncResult);
}
catch (Exception e)
{
Console.WriteLine(e.Data);
}
Console.WriteLine("{0}: Result, {1}; Data: {2}\n", Thread.CurrentThread.Name, result, data);
}
static void Main(string[] args)
{
Console.WriteLine("Client application started!\n");
Thread.CurrentThread.Name = "Main Thread";
Calculator cal = new Calculator();
AddDelegate del = new AddDelegate(cal.Add);
IAsyncResult asyncResult = del.BeginInvoke(2, 5, null, null);// 异步调用方法
// 做某些其他的事情，模拟需要执行3秒钟
for (int i = 1; i <= 3; i++)
{
Thread.Sleep(TimeSpan.FromSeconds(i));
Console.WriteLine("{0}: Client executed {1} second(s).",
Thread.CurrentThread.Name, i);
}
int rtn = del.EndInvoke(asyncResult);
Console.WriteLine("Result: {0}\n", rtn);
Console.WriteLine("\nPress any key to exit...");
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("客户端应用程序开始执行");
Thread.CurrentThread.Name = "主线程";
Calculator cal = new Calculator();
AddDelegate del = new AddDelegate(cal.Add);
IAsyncResult asr = del.BeginInvoke(2, 3, null, null);
//模拟3秒钟
for (int i = 1; i <= 3; i++)
{
Thread.Sleep(TimeSpan.FromSeconds(i));
Console.WriteLine("{0}:客户端线程停留{1}", Thread.CurrentThread.Name, i);
}
int result = del.EndInvoke(asr);
Console.WriteLine("结果：{0}", result);
Console.WriteLine("结束");
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("Client application started");
Thread.CurrentThread.Name = "Main Thread";
Calculator cal = new Calculator();
AddDelegate del = new AddDelegate(cal.Add);
IAsyncResult asyncResult = del.BeginInvoke(1, 2, null, null);
for (int i = 1; i <= 3; i++)
{
Thread.Sleep(TimeSpan.FromSeconds(i));
Console.WriteLine("{0}:Client excuted {1} seconds.", Thread.CurrentThread.Name, i);
}
int result = del.EndInvoke(asyncResult);
Console.WriteLine("Result:" + result);
Console.WriteLine("Press any key exist");
Console.Read();
}
static void Main(string[] args)
{
Console.WriteLine("Client application start!\n");
Thread.CurrentThread.Name = "Main thread";
Calculator cal = new Calculator();
AddDelegate addDelegate = new AddDelegate(cal.Add);
IAsyncResult asyncResult = addDelegate.BeginInvoke(2, 5, null, null);//这里需要保留IAsyncResult，以便调用EndInvoke的时候进行传递
//BeginInvoke(int x, int y, AsyncCallback callback, object @object)
for (int i = 1; i <= 3; i++)
{
Thread.Sleep(TimeSpan.FromSeconds(i));
Console.WriteLine("{0}: Client executed {1} second(s).", Thread.CurrentThread.Name, i);
}
int rtn = addDelegate.EndInvoke(asyncResult);//调用EndInvoke，得到返回值
Console.WriteLine("Result: {0}", rtn);
Console.WriteLine("\nPress any key to exit...");
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("枚举：");
EnumGreetPeople("枚举", Language.Chinese);
EnumGreetPeople("Enum", Language.English);
Console.WriteLine();
Console.WriteLine("委托：");
GreetingDelegate delegate1, delegate2;
delegate1 = ChineseGreeting;
delegate2 = EnglishGreeting;
GreetPeopple("委托", delegate1);
GreetPeopple("delegate", delegate2);
Console.WriteLine();
Console.WriteLine("委托绑定一：");
GreetingDelegate delegate3;
delegate3 = ChineseGreeting;
delegate3 += EnglishGreeting;
GreetPeopple("binding", delegate3);
Console.WriteLine();
Console.WriteLine("委托绑定二：");
delegate3("bundingtwo");
Console.WriteLine();
Console.WriteLine("委托解绑：");
delegate3 -= EnglishGreeting;
delegate3("unbunding");
Console.WriteLine();
Console.WriteLine("新类：");
GreetingManage gm = new GreetingManage();
gm.GreetPeople("gm类", ChineseGreeting);
gm.GreetPeople("classgm", EnglishGreeting);
Console.WriteLine();
Console.WriteLine("委托新类：");
GreetingManage gm2 = new GreetingManage();
GreetingDelegate delegate4;
delegate4 = ChineseGreeting;
delegate4 += EnglishGreeting;
gm2.GreetPeople("gmclasstwo", delegate4);
Console.WriteLine();
Console.WriteLine("新类定义的委托：");
GreetingManage gm3 = new GreetingManage();
gm3.gmGreetingDelegate = ChineseGreeting;
gm3.gmGreetingDelegate += EnglishGreeting;
gm3.gmGreetingDelegate("gmdelegate");
Console.WriteLine();
Console.WriteLine("模拟烧水过程，Observer设计模式：");
Console.WriteLine();
Heater heater = new Heater();
Alarm alarm = new Alarm();
Display display = new Display();
heater.Boiled += alarm.MakeAlert; //注册方法
heater.Boiled += (new Alarm()).MakeAlert; //给匿名对象注册方法
heater.Boiled += new Heater.BoiledEventHandler(alarm.MakeAlert); //也可以这么注册
heater.Boiled += Display.ShowMsg; //注册静态方法
heater.BoilWater(); //烧水，会自动调用注册过对象的方法
Console.WriteLine();
Console.WriteLine("不使用异步调用的通常情况：");
Console.WriteLine("Client application start");
Thread.CurrentThread.Name = "Main Thread";
Calculator cal = new Calculator();
int result = cal.Add(6, 8);
Console.WriteLine("Result：{0}", result);
//做其他事情，模拟需要执行3秒钟
for (int i = 1; i <= 3; i++)
{
Thread.Sleep(TimeSpan.FromSeconds(i));
Console.WriteLine("{0}：Client excute {1} second(s).", Thread.CurrentThread.Name, i);
}
Console.WriteLine();
Console.WriteLine("使用异步调用：");
Console.WriteLine("Client application started!\n");
//Thread.CurrentThread.Name = "Main Thread";
AddDelegate del = new AddDelegate(cal.Add);
string data = "And data you want to pass";
AsyncCallback callback = new AsyncCallback(Calculator.OnAddComplete);
IAsyncResult asyncResult = del.BeginInvoke(5, 6, callback, data); //异步调用方法
del.EndInvoke(asyncResult);
// 做某些其它的事情，模拟需要执行3 秒钟
for (int i = 1; i <= 3; i++)
{
Thread.Sleep(TimeSpan.FromSeconds(i));
Console.WriteLine("{0}: Client executed {1} second(s).", Thread.CurrentThread.Name, i);
}
Console.ReadLine();
Console.ReadKey();
}
