private void btn_Phishing_Click(object sender, EventArgs e)
        {
            Form_Phishing form_Phishing = new Form_Phishing();

            form_Phishing.Show();
            this.Hide();
        }
 private void btn_Cevapla_Click(object sender, EventArgs e)
 {
     if (textbox_Cevap.Text == Class_Phishing_Sorular.Sorular[0].Cevap)
     {
         Puan += 15 - Alinan_Harf;
         Class_Phishing_Sorular.SoruGec();
         if (Class_Phishing_Sorular.Sorular.Count == 0)
         {
             DialogResult dialogResult = MessageBox.Show("Tebrikler Bitirdiniz \nPuanınız: " + Puan, "TEBRİKLER", MessageBoxButtons.RetryCancel, MessageBoxIcon.Information);
             if (dialogResult == DialogResult.Cancel)
             {
                 Form_Giris form_Giris = new Form_Giris();
                 form_Giris.Show();
                 this.Hide();
             }
             else if (dialogResult == DialogResult.Retry)
             {
                 Form_Phishing form_Phishing = new Form_Phishing();
                 form_Phishing.Show();
                 this.Hide();
             }
         }
         else
         {
             textbox_Soru.Text  = Class_Phishing_Sorular.Sorular[0].Soru;
             Alinan_Harf        = 0;
             textbox_Cevap.Text = "";
         }
     }
     else
     {
         MessageBox.Show("Yanlış cevap", ":(", MessageBoxButtons.OK, MessageBoxIcon.Warning);
     }
 }