public string Dtitle
        {
            set { _dtitle = value; }
            get { return sdh.dbExecuteSql4Values("select Dtitle from DS_diary where Did='" + _did + "'"); }
        }
        /// <summary>
        /// 日志内容
        /// </summary>
        public string Dcontent
        {
            set { _dcontent = value; }
            get { return sdh.dbExecuteSql4Values("select Dcontent from DS_diary where Did='" + _did + "'"); }
        }
   这个是一个类里的，组长你说这么传_did不好容易被黑，可是应该怎么改呢？改成传参是什么意思呢？