Backup/Bll/OrdersBll.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
namespace Bll
{
    public class OrdersBll
    {
        IDAL.OrdersDal itu = DALFactory.Orders_Factory.Createusers();
        /// <summary>
        /// 获取最大值
        /// </summary>
        /// <returns></returns>
        public int getMax()
        {
            return itu.getMax();
        }
        /// <summary>
        /// 获取所有信息
        /// </summary>
        /// <returns></returns>
        public DataTable GetAll()
        {
            return itu.GetAll();
        }
        /// <summary>
        /// 获取指定信息
        /// </summary>
        /// <param name="sql"></param>
        /// <returns></returns>
        public DataTable GetAny(string sql)
        {
            return itu.GetAny(sql);
        }
        /// <summary>
        /// 添加一条记录
        /// </summary>
        /// <param name="m_order"></param>
        /// <returns></returns>
        public int Add(Model.tab_orders m_order)
        {
            return itu.Add(m_order);
        }
        /// <summary>
        /// 更新
        /// </summary>
        /// <param name="sql"></param>
        /// <returns></returns>
        public int Update(Model.tab_orders m_order)
        {
            return itu.Update(m_order);
        }
        /// <summary>
        /// 父子表
        /// </summary>
        /// <param name="sql"></param>
        /// <param name="sqlx"></param>
        /// <returns></returns>
        public DataSet getOrderInfo(string sql, string sqlx)
        {