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   源码介绍

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace PortW
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            this.btn_Close.Enabled = false;
        }
        public Port port { get; set; }
        public string stopStr = "FF 01 00 00 00 00 01";
        public string GOpenStr = "FF 01 02 00 00 00 03";
        public string GCloseStr = "FF 01 04 00 00 00 05";
        public string BOpenStr = "FF 01 00 40 00 00 41";
        public string BCloseStr = "FF 01 00 20 00 00 21";
        public string JOpenStr = "FF 01 00 80 00 00 81";
        public string JCloseStr = "FF 01 01 20 00 00 02";


        private void btn_Open_Click(object sender, EventArgs e)
        {
            port = new Port(tb_COM.Text);
            if (port.Open())
            {
                this.btn_Close.Enabled = true;
                this.btn_Open.Enabled = false;
            }
            else
                MessageBox.Show("NO");
        }

        private void btn_Close_Click(object sender, EventArgs e)
        {
            port.Close();
            this.btn_Open.Enabled = true;
            this.btn_Close.Enabled = false;
        }

        private void btn_Send_Click(object sender, EventArgs e)
        {
            if (cb_Opertaor.Checked)
            {
                if (port!=null)
                {
                    port.Send_data(tb_send.Text);
                }
            }
        }

      

        private void Button1_MouseDown(object sender, MouseEventArgs e)
        {
            if (!cb_Opertaor.Checked)
            {
                if (port != null)
                    port.Send_data(GOpenStr);
            }
            else
            {
                tb_send.Text = GOpenStr;
            }
        }

        private void Button2_MouseDown(object sender, MouseEventArgs e)
        {
            if (!cb_Opertaor.Checked)
            {
                if (port != null)
                    port.Send_data(GCloseStr);
            }
            else
            {
                tb_send.Text = GCloseStr;
            }
        }

        private void Button4_MouseDown(object sender, MouseEventArgs e)
        {
            if (!cb_Opertaor.Checked)
            {
                if (port != null)
                    port.Send_data(BOpenStr);
            }
            else
            {
                tb_send.Text = BOpenStr;
            }
        }

        private void Button3_MouseDown(object sender, MouseEventArgs e)
        {
            if (!cb_Opertaor.Checked)
            {
                if (port != null)
                    port.Send_data(BCloseStr);
            }
            else
            {
                tb_send.Text = BCloseStr;
            }
        }

        private void Button6_MouseDown(object sender, MouseEventArgs e)
        {
            if (!cb_Opertaor.Checked)
            {
                if (port != null)
                    port.Send_data(JOpenStr);
            }
            else
            {
                tb_send.Text = JOpenStr;
            }
        }

        private void Button5_MouseDown(object sender, MouseEventArgs e)
        {
            if (!cb_Opertaor.Checked)
            {
                if (port != null)
                    port.Send_data(JCloseStr);
            }
            else
            {
                tb_send.Text = JCloseStr;
            }
        }

        private void Button5_MouseLeave(object sender, EventArgs e)
        {

        }

        private void button7_Click(object sender, EventArgs e)
        {
            tb_send.Text = stopStr;
        }

        private void Button5_MouseLeave(object sender, MouseEventArgs e)
        {
            if (!cb_Opertaor.Checked)
            {
                if (port != null)
                    port.Send_data(stopStr);
            }
        }
    }
}