CheckBoxList 多选 样式 jquery获取选择项 C#获取选择项

 //使用平台            string Platfrom = string.Empty;            foreach (ListItem li in this.ddlplatform.Items)            {                if (li.Selected)                {                    Platfrom += li.Text + ",";                }            }            Platfrom = Platfrom.TrimEnd(',');