1  
   2  using System;
   3  using System.Collections.Generic;
   4  using System.Text;
   5  using System.Threading;
   6  
   7  namespace ConsoleApplication12
   8  {
   9      class Program
  10      {
  11          static object thisLock = new object();
  12          static int z = 0;
  13          private static void ThrStart()
  14          {
  15              for (int i = 0; i < 10000; i++)
  16              {
  17                  lock (thisLock)
  18                  {
  19                      z++;
  20                      Console.WriteLine(z);
  21                  }
  22              }
  23          }
  24  
  25          private static void ThrStart2()
  26          {
  27              for (int i = 0; i < 10000; i++)
  28              {
  29                  Monitor.Enter(thisLock);
  30                  z++;
  31                  Console.WriteLine(z);
  32                  Monitor.Exit(thisLock);
  33              }
  34          }
  35  
  36          static Mutex mutex = new Mutex();
  37          private static void ThrStart3()
  38          {
  39              for (int i = 0; i < 10000; i++)
  40              {
  41                  mutex.WaitOne();
  42                  z++;
  43                  Console.WriteLine(z);
  44                  mutex.ReleaseMutex();
  45              }
  46          }
  47  
  48  
  49          static void Main(string[] args)
  50          {
  51              Thread t1 = new Thread(new ThreadStart(ThrStart));
  52              Thread t2 = new Thread(new ThreadStart(ThrStart));
  53              t1.Start();
  54              t2.Start();
  55              t1.Join();
  56              t2.Join();
  57  
  58              t1 = new Thread(new ThreadStart(ThrStart2));
  59              t2 = new Thread(new ThreadStart(ThrStart2));
  60              t1.Start();
  61              t2.Start();
  62              t1.Join();
  63              t2.Join();
  64  
  65              t1 = new Thread(new ThreadStart(ThrStart3));
  66              t2 = new Thread(new ThreadStart(ThrStart3));
  67              t1.Start();
  68              t2.Start();
  69              t1.Join();
  70              t2.Join();
  71          }
  72      }
  73  }
  74  

   1  
   2          delegate void UpdateReportCallback(string text);
   3          private void UpdateReport(string message)
   4          {
   5              // InvokeRequired required compares the thread ID of the
   6              // calling thread to the thread ID of the creating thread.
   7              // If these threads are different, it returns true.
   8              if (this.textBoxReport.InvokeRequired)
   9              {
  10                  UpdateReportCallback d = new UpdateReportCallback(UpdateReport);
  11                  this.Invoke(d, new object[] { message });
  12              }
  13              else
  14              {
  15                  textBoxReport.Text = message + System.Environment.NewLine + textBoxReport.Text;
  16              }
  17          }