public class Timing

    {

        //startingTime--用来存储正在测试的代码的开始时间。

        TimeSpan startingTime;

        //duration——用来存储正在测试的代码的终止时间。

        TimeSpan durantion;

        public Timing()

        {

            startingTime = new TimeSpan(0);

            durantion = new TimeSpan(0);

        }

        public void startTime()

        {

            //先强制对所有代码进行回收

            GC.Collect();

            //挂起当前线程，直到处理终结器队列的线程清空该队列为止

            GC.WaitForPendingFinalizers();

            //获取关联程序运行代码所用的时间

            startingTime = Process.GetCurrentProcess().Threads[0].UserProcessorTime;

        }

        public void StopTime()

        {

            durantion = Process.GetCurrentProcess().Threads[0].

                UserProcessorTime.Subtract(startingTime);

        }

        public TimeSpan Result()

        {

            return durantion;

        }

    }

static void Main(string[] args)

        {

            //DateTime starttime = DateTime.Now;

            //Print(10000);

            ////PrintN(100000);

            //DateTime endtime = DateTime.Now;

            //double end = TimeHelp.Service.Timehelp(starttime, endtime);

            //Console.WriteLine("耗时：" + end);

            Timing tObj = new Timing();

            tObj.startTime();

            Print(500000);

            tObj.StopTime();

            Console.WriteLine("耗时：" + tObj.Result().TotalSeconds);

            Console.Read();

        }

        public static void Print(int N)

        {

            for (int i = 0; i <= N; i++)

            {

                Console.WriteLine(i);

            }

            return;

        }