ExcuteNonQuery

        DBHelper.GetExcuteNonQuery(sb.ToString()) > 0;

        public static int GetExcuteNonQuery(string cmdTxt)
        {
            return GetExcuteNonQuery(cmdTxt, null);
        }
        /// <summary>
        /// 带参数化的　主要用于（增加，删除，修改）,返回受影响的行数
        /// </summary>
        /// <param name="cmdTxt">带参数列表的sql语句</param>
        /// <param name="pars">要传入的参数列表</param>
        /// <returns></returns>
        public static int GetExcuteNonQuery(string cmdTxt, params SqlParameter[] pars)
        {
            using (cmd = new SqlCommand(cmdTxt, Connectionstrings))
            {
                if (pars != null)
                    cmd.Parameters.AddRange(pars);
                return cmd.ExecuteNonQuery();
            }
        }