using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;



namespace mytest

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            string str = "io,tu,noi,voi";

            

            string[] words = str.Split(',');

            foreach (string word in words)

            {

                MessageBox.Show(word);

            }







        }

    }

}