1-) C# - 61. Captcha Oluşturma

using System;

using System.Windows.Forms;

namespace _61.Captcha_Olusturma

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            string[] sembol1 = { "a", "b", "c", "d", "e", "f", "g" };

            string[] sembol2 = { "+", "-", "*", "/", "#" };

            Random r = new Random();

            int s1, s2, s3;

            s1 = r.Next(0, sembol1.Length);

            s2 = r.Next(0, sembol2.Length);

            s3 = r.Next(0, 10);

            label1.Text = sembol1[s1].ToString()+sembol2[s2].ToString()+s3.ToString();

        }

    }

}