如何利用C#.NET達(dá)到同步.doc

a ReaderWriterLock object to control the access. To do this, follow these steps: 1. Start Microsoft Visual Studio. 2. On the File menu, point to New, and then click Project. 3. Click Visual C# Projects under Project Types, and then click Console Application under Templates. Note In Visual Studio 2005 or in Visual Studio 2008, click Visual C# under Project Types, and then click Console Application under Templates. 4. In the Name text box, type MultiThreadApplication, and then click OK. 5. Replace the existing code with the following code in Class1.cs.Note In Visual Studio 2005 and in Visual Studio 2008, the default file is Program.cs. class Class1 private ReaderWriterLock rwl = new ReaderWriterLock(); private long myNumber; public long Number / the Number property get /Acquire a read lock on the resource. rwl.AcquireReaderLock(Timeout.Infinite); try Console.WriteLine(Thread:0 starts getting the Number, Thread.CurrentThread.GetHashCode(); Thread.Sleep(50); Console.WriteLine(Thread:0 got the Number, Thread.CurrentThread.GetHashCode(); finally /Release the lock. rwl.ReleaseReaderLock(); return myNumber; set /Acquire a write lock on the resource. rwl.AcquireWriterLock(Timeout.Infinite); try Console.WriteLine(Thread: 0 start writing the Number, Thread.CurrentThread.GetHashCode(); Thread.Sleep(50); myNumber = value; Console.WriteLine(Thread: 0 written the Number, Thread.CurrentThread.GetHashCode(); finally /Release the lock. rwl.ReleaseWriterLock(); STAThread static void Main(string args) Thread threadArray = new Thread20; int threadNum; Class1 Myclass = new Class1(); ThreadStart myThreadStart = new ThreadStart(Myclass.AccessGlobalResource); /Create 20 threads. for (threadNum = 0; threadNum 20; threadNum+) threadArraythreadNum = new Thread(myThreadStart); /Start the threads. for (threadNum = 0; threadNum 20; threadNum+) threadArraythreadNum.Start(); /Wait until all the thread spawn out finish. for (threadNum = 0; threadNum 20; threadNum+) threadArraythreadNum.Join(); Console.WriteLine(All operations have completed. Press enter to exit); Console.ReadLine(); public void AccessGlobalResource() Random rnd = new Random()