private void Button1_Click(object sender, EventArgs e)
        {
            BookAddorChange bookAddorChange = new BookAddorChange
            {
                MdiParent = Oreki.Main,
                Text      = "图书添加"
            };

            bookAddorChange.button1.Text     = "添加";
            bookAddorChange.textBox1.Text    = "";
            bookAddorChange.textBox1.Enabled = true;
            bookAddorChange.button1.Enabled  = false;
            bookAddorChange.Show();
        }
        private void Button2_Click(object sender, EventArgs e)
        {
            BookAddorChange bookAddorChange = new BookAddorChange
            {
                MdiParent = Oreki.Main,
                Text      = "图书修改"
            };

            bookAddorChange.button1.Text     = "修改";
            bookAddorChange.textBox1.Text    = Oreki.Bookbarcode;
            bookAddorChange.textBox2.Text    = Convert.ToString(dataGridView1.CurrentRow.Cells[1].Value);
            bookAddorChange.textBox3.Text    = Convert.ToString(dataGridView1.CurrentRow.Cells[2].Value);
            bookAddorChange.textBox4.Text    = Convert.ToString(dataGridView1.CurrentRow.Cells[3].Value);
            bookAddorChange.textBox5.Text    = Convert.ToString(dataGridView1.CurrentRow.Cells[4].Value);
            bookAddorChange.textBox1.Enabled = false;
            bookAddorChange.Show();
        }