转：C#综合揭秘——细说多线程（上）

 1         static void Main(string[] args)
 2         {
 3             Thread thread = Thread.CurrentThread;
 4             thread.Name = "Main Thread";
 5             string threadMessage = string.Format("Thread ID:{0}
    Current AppDomainId:{1}
    "+
 6                 "Current ContextId:{2}
    Thread Name:{3}
    "+
 7                 "Thread State:{4}
    Thread Priority:{5}
",
 8                 thread.ManagedThreadId, Thread.GetDomainID(), Thread.CurrentContext.ContextID,
 9                 thread.Name, thread.ThreadState, thread.Priority);
10             Console.WriteLine(threadMessage);
11             Console.ReadKey();
12         }

 1       public class Message
 2       {
 3           public void ShowMessage()
 4           {
 5               string message = string.Format("Async threadId is :{0}",
 6                                               Thread.CurrentThread.ManagedThreadId);
 7               Console.WriteLine(message);
 8   
 9               for (int n = 0; n < 10; n++)
10               {
11                   Thread.Sleep(300);   
12                   Console.WriteLine("The number is:" + n.ToString()); 
13               }
14           }
15       }
16   
17       class Program
18       {
19           static void Main(string[] args)
20           {
21               Console.WriteLine("Main threadId is:"+
22                                 Thread.CurrentThread.ManagedThreadId);
23               Message message=new Message();
24               Thread thread = new Thread(new ThreadStart(message.ShowMessage));
25               thread.Start();
26               Console.WriteLine("Do something ..........!");
27               Console.WriteLine("Main thread working is complete!");
28               
29           }
30       }

 1     public class Person
 2     {
 3         public string Name
 4         {
 5             get;
 6             set;
 7         }
 8         public int Age
 9         {
10             get;
11             set;
12         }
13     }
14 
15     public class Message
16     {
17         public void ShowMessage(object person)
18         {
19             if (person != null)
20             {
21                 Person _person = (Person)person;
22                 string message = string.Format("
{0}'s age is {1}!
Async threadId is:{2}",
23                     _person.Name,_person.Age,Thread.CurrentThread.ManagedThreadId);
24                 Console.WriteLine(message);
25             }
26             for (int n = 0; n < 10; n++)
27             {
28                 Thread.Sleep(300);   
29                 Console.WriteLine("The number is:" + n.ToString()); 
30             }
31         }
32     }
33 
34     class Program
35     {
36         static void Main(string[] args)
37         {     
38             Console.WriteLine("Main threadId is:"+Thread.CurrentThread.ManagedThreadId);
39             
40             Message message=new Message();
41             //绑定带参数的异步方法
42             Thread thread = new Thread(new ParameterizedThreadStart(message.ShowMessage));
43             Person person = new Person();
44             person.Name = "Jack";
45             person.Age = 21;
46             thread.Start(person);  //启动异步线程 
47             
48             Console.WriteLine("Do something ..........!");
49             Console.WriteLine("Main thread working is complete!");
50              
51         }
52     }

 1     public class Message
 2     {
 3         public void ShowMessage()
 4         {
 5             string message = string.Format("
Async threadId is:{0}",
 6                                            Thread.CurrentThread.ManagedThreadId);
 7             Console.WriteLine(message);
 8             for (int n = 0; n < 10; n++)
 9             {
10                 Thread.Sleep(300);
11                 Console.WriteLine("The number is:" + n.ToString());
12             }
13         }
14     }
15 
16     class Program
17     {
18         static void Main(string[] args)
19         {     
20             Console.WriteLine("Main threadId is:"+
21                               Thread.CurrentThread.ManagedThreadId);
22             
23             Message message=new Message();
24             Thread thread = new Thread(new ThreadStart(message.ShowMessage));
25             thread.IsBackground = true;
26             thread.Start();
27             
28             Console.WriteLine("Do something ..........!");
29             Console.WriteLine("Main thread working is complete!");
30             Console.WriteLine("Main thread sleep!");
31             Thread.Sleep(5000);
32         }
33     }

 1          static void Main(string[] args)
 2          {
 3              Console.WriteLine("Main threadId is:" +
 4                                Thread.CurrentThread.ManagedThreadId);
 5  
 6              Thread thread = new Thread(new ThreadStart(AsyncThread));
 7              thread.IsBackground = true;
 8              thread.Start();
 9              thread.Join();
10  
11          }     
12          
13          //以异步方式调用
14          static void AsyncThread()
15          {
16              try
17              {
18                  string message = string.Format("
Async threadId is:{0}",
19                     Thread.CurrentThread.ManagedThreadId);
20                  Console.WriteLine(message);
21  
22                  for (int n = 0; n < 10; n++)
23                  {
24                      //当n等于4时，终止线程
25                      if (n >= 4)
26                      {
27                          Thread.CurrentThread.Abort(n);
28                      }
29                      Thread.Sleep(300);
30                      Console.WriteLine("The number is:" + n.ToString());
31                  }
32              }
33              catch (ThreadAbortException ex)
34              {
35                  //输出终止线程时n的值
36                  if (ex.ExceptionState != null)
37                      Console.WriteLine(string.Format("Thread abort when the number is: {0}!", 
38                                                       ex.ExceptionState.ToString()));
39                 
40                  //取消终止，继续执行线程
41                  Thread.ResetAbort();
42                  Console.WriteLine("Thread ResetAbort!");
43              }
44  
45              //线程结束
46              Console.WriteLine("Thread Close!");
47          }

 1     class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             //把CLR线程池的最大值设置为1000
 6             ThreadPool.SetMaxThreads(1000, 1000);
 7             //显示主线程启动时线程池信息
 8             ThreadMessage("Start");
 9             //启动工作者线程
10             ThreadPool.QueueUserWorkItem(new WaitCallback(AsyncCallback));
11             Console.ReadKey();
12         }
13         
14         static void AsyncCallback(object state)
15         {
16             Thread.Sleep(200);
17             ThreadMessage("AsyncCallback");
18             Console.WriteLine("Async thread do work!");
19         }
20 
21         //显示线程现状
22         static void ThreadMessage(string data)
23         {
24             string message = string.Format("{0}
  CurrentThreadId is {1}",
25                  data, Thread.CurrentThread.ManagedThreadId);
26             Console.WriteLine(message);
27         }
28     }

 1     class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             //把线程池的最大值设置为1000
 6             ThreadPool.SetMaxThreads(1000, 1000);
 7           
 8             ThreadMessage("Start");
 9             ThreadPool.QueueUserWorkItem(new WaitCallback(AsyncCallback),"Hello Elva");
10             Console.ReadKey();
11         }
12 
13         static void AsyncCallback(object state)
14         {
15             Thread.Sleep(200);
16             ThreadMessage("AsyncCallback");
17 
18             string data = (string)state;
19             Console.WriteLine("Async thread do work!
"+data);
20         }
21 
22         //显示线程现状
23         static void ThreadMessage(string data)
24         {
25             string message = string.Format("{0}
  CurrentThreadId is {1}",
26                  data, Thread.CurrentThread.ManagedThreadId);
27             Console.WriteLine(message);
28         }
29     }

 1     class Program
 2     {
 3         delegate void MyDelegate();
 4 
 5         static void Main(string[] args)
 6         {
 7             MyDelegate delegate1 = new MyDelegate(AsyncThread);
 8             //显示委托类的几个方法成员     
 9             var methods=delegate1.GetType().GetMethods();
10             if (methods != null)
11                 foreach (MethodInfo info in methods)
12                     Console.WriteLine(info.Name);
13             Console.ReadKey();
14          }
15      }

1     public class MyDelegate:MulticastDelegate
2     {
3         public MyDelegate(object target, int methodPtr);
4         //调用委托方法
5         public virtual void Invoke();
6         //异步委托
7         public virtual IAsyncResult BeginInvoke(AsyncCallback callback,object state);
8         public virtual void EndInvoke(IAsyncResult result);
9     }

 1     class Program
 2     {
 3         delegate string MyDelegate(string name);
 4 
 5         static void Main(string[] args)
 6         {
 7             ThreadMessage("Main Thread");
 8             
 9             //建立委托
10             MyDelegate myDelegate = new MyDelegate(Hello);
11             //异步调用委托，获取计算结果
12             IAsyncResult result=myDelegate.BeginInvoke("Leslie", null, null);
13             //完成主线程其他工作
14             ............. 
15             //等待异步方法完成，调用EndInvoke(IAsyncResult)获取运行结果
16             string data=myDelegate.EndInvoke(result);
17             Console.WriteLine(data);
18             
19             Console.ReadKey();
20         }
21 
22         static string Hello(string name)
23         {
24             ThreadMessage("Async Thread");
25             Thread.Sleep(2000);            //虚拟异步工作
26             return "Hello " + name;
27         }
28 
29         //显示当前线程
30         static void ThreadMessage(string data)
31         {
32             string message = string.Format("{0}
  ThreadId is:{1}",
33                    data,Thread.CurrentThread.ManagedThreadId);
34             Console.WriteLine(message);
35         }
36     }

1 public interface IAsyncResult
2 {
3     object AsyncState {get;}            //获取用户定义的对象，它限定或包含关于异步操作的信息。
4     WailHandle AsyncWaitHandle {get;}   //获取用于等待异步操作完成的 WaitHandle。
5     bool CompletedSynchronously {get;}  //获取异步操作是否同步完成的指示。
6     bool IsCompleted {get;}             //获取异步操作是否已完成的指示。
7 }

 1     class Program
 2     {
 3         delegate string MyDelegate(string name);
 4 
 5         static void Main(string[] args)
 6         {
 7             ThreadMessage("Main Thread");
 8             
 9             //建立委托
10             MyDelegate myDelegate = new MyDelegate(Hello);
11             //异步调用委托，获取计算结果
12             IAsyncResult result=myDelegate.BeginInvoke("Leslie", null, null);
13             //在异步线程未完成前执行其他工作
14             while (!result.IsCompleted)
15             {
16                 Thread.Sleep(200);      //虚拟操作
17                 Console.WriteLine("Main thead do work!");
18             }
19             string data=myDelegate.EndInvoke(result);
20             Console.WriteLine(data);
21             
22             Console.ReadKey();
23         }
24 
25         static string Hello(string name)
26         {
27             ThreadMessage("Async Thread");
28             Thread.Sleep(2000);
29             return "Hello " + name;
30         }
31 
32         static void ThreadMessage(string data)
33         {
34             string message = string.Format("{0}
  ThreadId is:{1}",
35                    data,Thread.CurrentThread.ManagedThreadId);
36             Console.WriteLine(message);
37         }
38     }

 1 namespace Test
 2 {
 3     class Program
 4     {
 5         delegate string MyDelegate(string name);
 6 
 7         static void Main(string[] args)
 8         {
 9             ThreadMessage("Main Thread");
10             
11             //建立委托
12             MyDelegate myDelegate = new MyDelegate(Hello);
13  
14             //异步调用委托，获取计算结果
15             IAsyncResult result=myDelegate.BeginInvoke("Leslie", null, null);
16             
17             while (!result.AsyncWaitHandle.WaitOne(200))
18             {
19                 Console.WriteLine("Main thead do work!");
20             }
21             string data=myDelegate.EndInvoke(result);
22             Console.WriteLine(data);
23             
24             Console.ReadKey();
25         }
26 
27         static string Hello(string name)
28         {
29             ThreadMessage("Async Thread");
30             Thread.Sleep(2000);
31             return "Hello " + name;
32         }
33 
34         static void ThreadMessage(string data)
35         {
36             string message = string.Format("{0}
  ThreadId is:{1}",
37                    data,Thread.CurrentThread.ManagedThreadId);
38             Console.WriteLine(message);
39         }
40     }

 1     class Program
 2     {
 3         delegate string MyDelegate(string name);
 4 
 5         static void Main(string[] args)
 6         {
 7             ThreadMessage("Main Thread");
 8             
 9             //建立委托
10             MyDelegate myDelegate = new MyDelegate(Hello);
11  
12             //异步调用委托，获取计算结果
13             IAsyncResult result=myDelegate.BeginInvoke("Leslie", null, null);
14 
15             //此处可加入多个检测对象
16             WaitHandle[] waitHandleList = new WaitHandle[] { result.AsyncWaitHandle,........ };
17             while (!WaitHandle.WaitAll(waitHandleList,200))
18             {
19                 Console.WriteLine("Main thead do work!");
20             }
21             string data=myDelegate.EndInvoke(result);
22             Console.WriteLine(data);
23             
24             Console.ReadKey();
25         }
26 
27         static string Hello(string name)
28         {
29             ThreadMessage("Async Thread");
30             Thread.Sleep(2000);
31             return "Hello " + name;
32         }
33 
34         static void ThreadMessage(string data)
35         {
36             string message = string.Format("{0}
  ThreadId is:{1}",
37                    data,Thread.CurrentThread.ManagedThreadId);
38             Console.WriteLine(message);
39         }
40     }

 1     class Program
 2     {
 3         delegate string MyDelegate(string name);
 4 
 5         static void Main(string[] args)
 6         {
 7             ThreadMessage("Main Thread");
 8 
 9             //建立委托
10             MyDelegate myDelegate = new MyDelegate(Hello);
11             //异步调用委托，获取计算结果
12             myDelegate.BeginInvoke("Leslie", new AsyncCallback(Completed), null);
13             //在启动异步线程后，主线程可以继续工作而不需要等待
14             for (int n = 0; n < 6; n++)
15                 Console.WriteLine("  Main thread do work!");
16             Console.WriteLine("");
17 
18             Console.ReadKey();
19         }
20 
21         static string Hello(string name)
22         {
23             ThreadMessage("Async Thread");
24             Thread.Sleep(2000);             \模拟异步操作
25             return "
Hello " + name;
26         }
27 
28         static void Completed(IAsyncResult result)
29         {
30             ThreadMessage("Async Completed");
31 
32             //获取委托对象，调用EndInvoke方法获取运行结果
33             AsyncResult _result = (AsyncResult)result;
34             MyDelegate myDelegate = (MyDelegate)_result.AsyncDelegate;
35             string data = myDelegate.EndInvoke(_result);
36             Console.WriteLine(data);
37         }
38 
39         static void ThreadMessage(string data)
40         {
41             string message = string.Format("{0}
  ThreadId is:{1}",
42                    data, Thread.CurrentThread.ManagedThreadId);
43             Console.WriteLine(message);
44         }
45     }

 1     class Program
 2     {
 3         public class Person
 4         {
 5             public string Name;
 6             public int Age;
 7         }
 8 
 9         delegate string MyDelegate(string name);
10 
11         static void Main(string[] args)
12         {
13             ThreadMessage("Main Thread");
14 
15             //建立委托
16             MyDelegate myDelegate = new MyDelegate(Hello);
17             
18             //建立Person对象
19             Person person = new Person();
20             person.Name = "Elva";
21             person.Age = 27;
22             
23             //异步调用委托，输入参数对象person, 获取计算结果
24             myDelegate.BeginInvoke("Leslie", new AsyncCallback(Completed), person);            
25           
26             //在启动异步线程后，主线程可以继续工作而不需要等待
27             for (int n = 0; n < 6; n++)
28                 Console.WriteLine("  Main thread do work!");
29             Console.WriteLine("");
30 
31             Console.ReadKey();
32         }
33 
34         static string Hello(string name)
35         {
36             ThreadMessage("Async Thread");
37             Thread.Sleep(2000);
38             return "
Hello " + name;
39         }
40 
41         static void Completed(IAsyncResult result)
42         {
43             ThreadMessage("Async Completed");
44 
45             //获取委托对象，调用EndInvoke方法获取运行结果
46             AsyncResult _result = (AsyncResult)result;
47             MyDelegate myDelegate = (MyDelegate)_result.AsyncDelegate;
48             string data = myDelegate.EndInvoke(_result);
49             //获取Person对象
50             Person person = (Person)result.AsyncState;
51             string message = person.Name + "'s age is " + person.Age.ToString();
52 
53             Console.WriteLine(data+"
"+message);
54         }
55 
56         static void ThreadMessage(string data)
57         {
58             string message = string.Format("{0}
  ThreadId is:{1}",
59                    data, Thread.CurrentThread.ManagedThreadId);
60             Console.WriteLine(message);
61         }
62     }