using System;

using System.Diagnostics;

​

public class Program

{

    public static void Main()

    {

        var x = new Stopwatch();

        double t = 0;

        t = TimeSpan.FromSeconds(1).TotalSeconds;

        x.Start();

        for(int i=0; i<60000000; i++)

        {

            if(x.Elapsed.TotalSeconds >= t)

            {

                Console.WriteLine("Hello World" + x.Elapsed.TotalSeconds);

                x.Stop();

            }

            //Console.WriteLine("time : " + x.Elapsed.TotalSeconds);

        }

​

        Console.WriteLine("Test");

    }

}