public uiCHSTRAS_091_Teach(Form form, SHF_BT.btSHFUserLogin shfUserLogin,
            SHF_BT.btSHFUnitPractice shfUnitPratice, int courseType)
            : base(form, shfUserLogin, shfUnitPratice, courseType)
        {
            InitializeComponent();

            pictureBox = new PictureBox[] { pictureBox1, pictureBox2 };
            label = new Label[] { label1, label2 };
            itemNumber = label.Length;
            bt = new btCHSTRAS_091_Teach(shfUserLogin, shfUnitPratice, courseType);
            totalNumber = bt.getTotal();
            next();
        }
        public uiCHSTRAS_091_Teach(Form form, SHF_BT.btSHFUserLogin shfUserLogin, SHF_BT.btSHFUnitPractice shfUnitPratice)
            : base(form, shfUserLogin, shfUnitPratice)
        {
            InitializeComponent();

            pictureBox = new PictureBox[] { pictureBox1, pictureBox2 };
            label = new Label[] { label1, label2 };
            number = label.Length;
            bt = new btCHSTRAS_091_Teach(shfUserLogin, shfUnitPratice);
            buttonBackward.Enabled = false;
            totalNum = bt.getTotal();
            this.labelTotal.Text += totalNum;
            next();
        }