Chrome控制台没有运行命令？

Question

我的chrome控制台的行为是这样的。它甚至不会运行最简单的命令。

为什么不发出像这样的简单变量：

using System;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication8
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            //form constractor 
            InitializeComponent();
        }
        timer mytimer;
        private void Form1_Load(object sender, EventArgs e)
        {
            //perform event click for button automaticly 
            button1.PerformClick(); 
        }
        private void Elipse()
        {
            //the code for timer :) //yazeed coding  ,,,, write any other code
            new Thread(() => MessageBox.Show("Successful")).Start();
            Text = DateTime.Now.TimeOfDay.Seconds.ToString();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            mytimer = new timer();
            mytimer.elipse += Elipse;
            mytimer.Interval = 1000;
            mytimer.Enable = true;
            mytimer.start(this);
        }
    }
}
class timer
{
    bool isstart;
    internal delegate void Del();
    internal Del elipse;
    static void UserRep() { }
    internal bool Enable { get; set; }
    internal int Interval { get; set; }
    internal timer(int val=100)
    {
        Enable = false;
        Interval = val>0?val:100;//default is 1 sec
        isstart = false;
        elipse = new Del(UserRep);
    }
    internal void start(Form Context)
    {
         new Thread(async () =>
        {
            isstart = true;
            do
            {
                await Task.Delay(Interval);
                new Thread(() => Context.BeginInvoke((MethodInvoker)delegate
               {
                   elipse(); //the replacment running now (interface thrad protected)
               })).Start();
            }
            while (isstart);
        }).Start();
    }
    internal void stop()
    {
        isstart = false;
    }
}