C#使用Parallel类进行多线程编程实例

本文实例讲述了c#使用 parallel 类进行多线程编程的方法。分享给大家供大家参考。具体如下：

using system;
using system.collections.generic;
using system.linq;
using system.text;
using system.threading;
using system.threading.tasks;
using system.diagnostics;
using system.runtime.interopservices;
namespace threads
{
  class program
  {
    [dllimport("kernel32.dll", charset = charset.auto, setlasterror = true)]
    public static extern int getcurrentprocessornumber();
    private static int criticalsection = 0;
    private static object lockobject = new object();
    static void main(string[] args)
    {
      console.writeline("==================sequential calls==============");
      console.writeline();
      target();
      target();
      target();
      target();
      target();
      target();
      target();
      target();
      console.writeline();
      console.writeline("==================parallel calls==============");
      console.writeline();
      action action = new action(target);
      parallel.invoke(new action[] { action, action, action, action, action, action, action, action });
      console.readkey();
    }
    private static void target()
    {
      thread.sleep(2000);
      lock (lockobject)
      {
        criticalsection++;
        console.writeline(string.format("thread id: {0} and processor id: " + 
         "{1} critical variable value: {2}", 
         thread.currentthread.managedthreadid, 
         getcurrentprocessornumber(), criticalsection));
      }
    }
  }
}

希望本文所述对大家的c#程序设计有所帮助。