TrainCamp_zhangyongpan_Modbus/ModbusDemo/Uitls/DatabaseHelper.cs

using ModbusDemo.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ModbusDemo.Uitls
{
    public class DatabaseHelper
    {

        //private  readonly ModbusDbContext _modbusDbContext;
        //public DatabaseHelper(ModbusDbContext modbusDbContext)
        //{
        //    _modbusDbContext = modbusDbContext;
        //}
        //public static List<ModbusLog> GetOperateCoil()
        //{
        //    return _modbusDbContext.ModbusLog
        //           .Where(log => log.OperationType == "读线圈" || log.OperationType == "写线圈")
        //           .OrderByDescending(log => log.Time)  // 按时间倒序，最新的在前
        //           .Take(30)  // 只取前30条记录
        //           .ToList();  // 执行查询
        //}
    }
}