private void button1_Click(object sender, EventArgs e)
        {
            String hmd_id, hmd_name;

            hmd_id   = comboBox1.SelectedValue.ToString();
            hmd_name = comboBox2.SelectedValue.ToString();
            chloe_control_all chloe_obj = new chloe_control_all("Data Source=DESKTOP-O4C25KM;Initial Catalog=场馆预约系统;Integrated Security=True");

            chloe_obj.inser_hmd(hmd_id, hmd_name);
            GLY_heimingdan_Load(null, null);
        }