/// <summary>
        /// 新增要素分类
        /// </summary>
        /// <param name="elementClassify">要素分类对象</param>
        /// <param name="dt">最后修改时间</param>
        /// <param name="nid">新GUID</param>
        public void CreateElementClassify(ElementClassify elementClassify)
        {
            ///获取当前时间
            DateTime dt = NewData.NewDate();
            //获取新的GUID
            string             nid = NewData.NewGuid();
            ElementClassifyDAL elementClassifyDAL = new ElementClassifyDAL();

            elementClassifyDAL.CreateElementClassify(elementClassify, dt, nid);
        }