using System;
using System.Diagnostics;
using System.Threading;
using System.Threading.Tasks;
 
namespace StopWatchPro
{
    class Program
    {
        static void Main(string[] args)
        {
            Stopwatch sw = new Stopwatch();
            sw.Start();
 
            //多线程
            ParallelLoopResult result =
            Parallel.For(0, 10000, i =>
            {
                Console.Write(i);
                Thread.Sleep(1);
 
            });
            sw.Stop();
            Console.WriteLine("Parallel.For总共花费{0}ms.", sw.ElapsedMilliseconds);
 
            //单线程
            sw.Reset();
            sw.Start();
            for (int i = 0; i < 10000; i++)
            {
                Console.Write(i);
                Thread.Sleep(1);
            }
            sw.Stop();
            Console.WriteLine("for总共花费{0}ms.", sw.ElapsedMilliseconds);
 
            Console.ReadKey();
        }
    }
}