C#按Enter鍵觸發按鈕點擊事件

       private void richTextBox2_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == '\r')
            {
               // button2.Focus();
                button1_Click(sender, e);
            }
            if (e.KeyChar == System.Convert.ToChar(13))
            {
                e.Handled = true;
            }
        }