PrintService/POSCorePrint/Constant.cs

using Microsoft.Extensions.Configuration;
using MySql.Data.MySqlClient;
using POSCorePrint.Jobs;
using System;
using System.Collections.Generic;
using System.Data;
using System.Text;

namespace POSCorePrint
{
    internal class Constant
    {
        internal static int port = 9100;
        internal static IConfigurationRoot Configuration;
        internal static string ConnectionString;
        internal static double PrintBackTime;//打印多久之前的数据：分钟
        internal static double SaveHisDataDays;//只保留最近几天的打印数据：天      
    }
}