/// <summary>
 /// 删除
 /// </summary>
 /// <param name="id"></param>
 private void Del(string id)
 {
     ShowShop.BLL.SystemInfo.ArticleChannel bll = new ShowShop.BLL.SystemInfo.ArticleChannel();
     if (bll.HasChild(Convert.ToInt32(id))) //判断旗下是否有子频道
     {
         Response.Write("haschild");
         return;
     }
     ShowShop.BLL.SystemInfo.Article abll = new ShowShop.BLL.SystemInfo.Article();
     if (abll.ExistByCid(Convert.ToInt32(id))) //判断该频道下是否有文章
     {
         Response.Write("hasarticel");
         return;
     }
     bll.Delete(id);
     Response.Write("ok");
 }