Common/LedHelper.cs

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using System;
using System.IO.Ports;

namespace Common
{
    public class LedHelper
    {
        private static int _baudRate = 2400;
        private static string _portName = "COM2";
        /// <summary>
        /// 串型端口对象
        /// </summary>
        private static SerialPort _serialPort;
        /// <summary>
        /// 波特率
        /// </summary>
        public static int BaudRate
        {
            get { return _baudRate; }
            set { _baudRate = value; }
        }
        /// <summary>
        /// 端口
        /// </summary>
        public static string PortName
        {
            get { return _portName; }
            set { _portName = value; }
        }
        /// <summary>
        /// 清空屏幕
        /// </summary>
        public static void ScreenClean()
        {
            Open();

            Clear();

            Close();
        }
        /// <summary>
        /// 显示单价
        /// </summary>
        /// <param name="price"></param>
        public static void ShowUnitPrice(string price)
        {
            Open();
            UnitPrice(price);
            Close();
        }
        /// <summary>
        /// 显示应收
        /// </summary>
        /// <param name="money"></param>
        public static void ShowSum(string money)
        {
            Open();
            Sum(money);
            Close();
        }