/// <summary>
        /// 获取表数据
        /// </summary>
        /// <param name="SQLType">1-获取表数据,0-获取表结构,</param>
        /// <returns></returns>
        public DataTable GetTable(int SQLType, string where)
        {
            string sql = SQLGeneration.MySQLGeneration(tablename, where, SQLType);

            return(DBHelper.GetTable(sql, DBHelper.connStr));
        }
        /// <summary>
        /// 基本的增删改
        /// </summary>
        /// <param name="id">主键</param>
        /// <param name="table">要更新的表数据</param>
        /// <param name="SQLType">0-增加,1-修改,2-删除,</param>
        /// <returns></returns>
        public int Update(string PrimaryKey, DataTable table, int SQLType, List <string> keys)
        {
            string sql = SQLGeneration.MySQLGeneration(table, PrimaryKey, SQLType, tablename, keys);

            return(DBHelper.Update(sql, DBHelper.connStr));
        }