private void Button2_Click(object sender, EventArgs e)
        {
            var itemAddorChange = new ItemAddorChange
            {
                MdiParent = Assets.BackEnd,
                Text      = "商品修改"
            };

            itemAddorChange.button1.Text     = "修改";
            itemAddorChange.textBox1.Text    = Assets.ItemBarcode;
            itemAddorChange.textBox2.Text    = Convert.ToString(dataGridView1.CurrentRow.Cells[1].Value);
            itemAddorChange.textBox3.Text    = Convert.ToString(dataGridView1.CurrentRow.Cells[2].Value);
            itemAddorChange.textBox4.Text    = Convert.ToString(dataGridView1.CurrentRow.Cells[3].Value);
            itemAddorChange.textBox1.Enabled = false;
            itemAddorChange.Show();
        }
        private void Button1_Click(object sender, EventArgs e)
        {
            var itemAddorChange = new ItemAddorChange
            {
                MdiParent = Assets.BackEnd,
                Text      = "添加商品",
                button1   =
                {
                    Text    = "添加",
                    Enabled = false
                },
                textBox1 = { Enabled = true }
            };

            itemAddorChange.Show();
            itemAddorChange.textBox1.Focus();
        }