Clicker

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace UI_TRAINING
{
    public partial class MyTestProgram : Form
    {
        int i;
        public MyTestProgram()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            i++;
            button1.Text = i.ToString();

        }
    }
}

//vk.com/dandelay