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   源码介绍

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1软件打开时，自动检测有效COM端口

2 软件打开时，自动复原到上次关闭时的状态

3 不必关闭串口，即可直接进行更改初始化设置内容（串口号、波特率、数据位、停止位、校验位），可按更改后的信息自动将串口重新打开

4 可统计接收字节和发送字节的个数

5 接收数据可按16进制数据和非16进制数据进行整体转换

6 可将接收到数据进行保存

7 可设置自动发送，发送时间可进行实时更改

8可按字符串、16进制字节、文件方式进行发送，字符串和16进制字节可分别进行存储，内容互不干扰

9 按16进制发送时，可自动校验格式，不会输错

10 可清空发送或接收区域的数据

//软件启动时加载事件

        private void Form1_Load(object sender, EventArgs e)

        {

          

            #region 加载配置文件

            Hashtable ht = new Hashtable();

            if (File.Exists(path))

            {

                try

                {

                    string myline = "";

                    string[] str = new string[2];

                    using (StreamReader sr = new StreamReader(path))

                    {

                        myline = sr.ReadLine();

                        while (myline != null)

                        {

                            str = myline.Split('=');

                            ht.Add(str[0], str[1]);

                            myline = sr.ReadLine();

                        }

                    }

                }

                catch(Exception ex)

                {

                    MessageBox.Show(ex.Message.ToString());

                }

            }

            #endregion

           

            #region 设置窗口为固定大小且不可最大化

            this.MaximumSize = this.Size;

            this.MinimumSize = this.Size;

            this.MaximizeBox = false;

            #endregion

            #region 列出常用的波特率

            cbxBaudRate.Items.Add("1200");

            cbxBaudRate.Items.Add("2400");

            cbxBaudRate.Items.Add("4800");

            cbxBaudRate.Items.Add("9600");

            cbxBaudRate.Items.Add("19200");

            cbxBaudRate.Items.Add("38400");

            cbxBaudRate.Items.Add("43000");

            cbxBaudRate.Items.Add("56000");

            cbxBaudRate.Items.Add("57600");

            cbxBaudRate.Items.Add("115200");

            if (ht.ContainsKey("cbxBaudRate"))

                cbxBaudRate.SelectedIndex = cbxBaudRate.Items.IndexOf(ht["cbxBaudRate"].ToString());

            else

                cbxBaudRate.SelectedIndex = 3;

            cbxBaudRate.DropDownStyle = ComboBoxStyle.DropDownList;

            #endregion

            #region 列出停止位

            cbxStopBits.Items.Add("1");

            cbxStopBits.Items.Add("1.5");

            cbxStopBits.Items.Add("2");

            if (ht.ContainsKey("cbxStopBits"))

                cbxStopBits.SelectedIndex = cbxStopBits.Items.IndexOf(ht["cbxStopBits"].ToString());

            else

                cbxStopBits.SelectedIndex = 0;

            cbxStopBits.DropDownStyle = ComboBoxStyle.DropDownList;

            #endregion

            #region 列出数据位

            cbxDataBits.Items.Add("8");

            cbxDataBits.Items.Add("7");

            cbxDataBits.Items.Add("6");

            cbxDataBits.Items.Add("5");

            if (ht.ContainsKey("cbxDataBits"))

                cbxDataBits.SelectedIndex = cbxDataBits.Items.IndexOf(ht["cbxDataBits"].ToString());

            else

                cbxDataBits.SelectedIndex = 0;

            cbxDataBits.DropDownStyle = ComboBoxStyle.DropDownList;

            #endregion

            #region 列出奇偶校验位

            cbxParity.Items.Add("无");

            cbxParity.Items.Add("奇校验");

            cbxParity.Items.Add("偶校验");

            if (ht.ContainsKey("cbxParity"))

                cbxParity.SelectedIndex = cbxParity.Items.IndexOf(ht["cbxParity"].ToString());

            else

                cbxParity.SelectedIndex = 0;

            cbxParity.DropDownStyle = ComboBoxStyle.DropDownList;

            #endregion

            #region COM口重新加载

            cbxCOMPort.Items.Clear();//清除当前串口号中的所有串口名称

            cbxCOMPort.Items.AddRange(Methods.ActivePorts());

            if (ht.ContainsKey("cbxCOMPort") && cbxCOMPort.Items.Contains(ht["cbxCOMPort"].ToString()))

                cbxCOMPort.SelectedIndex = cbxCOMPort.Items.IndexOf(ht["cbxCOMPort"].ToString());

            else

                cbxCOMPort.SelectedIndex = 0;

            cbxCOMPort.DropDownStyle = ComboBoxStyle.DropDownList;

            #endregion

            #region 初始化计数器

            tbSendCount.Text = "0";

            tbSendCount.ReadOnly = true;

            tbReceivedCount.Text = "0";

            tbReceivedCount.ReadOnly = true;

            #endregion

            #region 初始化当前时间

            toolStripStatusLabel3.Text = DateTime.Now.ToString();

            #endregion

            #region 初始化串口状态

            toolStripStatusLabel1.ForeColor = Color.Blue;

            if (!isSetProperty)//串口未设置则设置串口属性

            {

                SetPortProperty();

                isSetProperty = true;

            }

            try

            {

                sp.Open();

                btnOpenCom.Text = "关闭串口";

                DisplayPortState(PortState.打开);

            }

            catch (Exception)

            {

                //串口打开失败后，串口属性设置标志位设为false

                isSetProperty = false;

                MessageBox.Show("串口无效或已被占用!", "错误提示");

            }

            #endregion

            #region 初始化间隔时间

            if (ht.ContainsKey("tbSpaceTime"))

                tbSpaceTime.Text = ht["tbSpaceTime"].ToString();

            else

                tbSpaceTime.Text = "1000";

            #endregion

            #region 初始化按16进制显示状态

            if (ht.ContainsKey("cb16Display") && ht["cb16Display"].ToString() == "True")

                cb16Display.Checked = true;

            else

                cb16Display.Checked = false;

            #endregion

            #region 初始化按16进制发送状态

            if (ht.ContainsKey("cb16Send") && ht["cb16Send"].ToString() == "True")

                cb16Send.Checked = true;

            else

                cb16Send.Checked = false;

            #endregion

            #region 初始化发送区文本

            if(ht.ContainsKey("tbSendData16") && ht.ContainsKey("tbSendDataStr"))

            {

                tbSendData16 = ht["tbSendData16"].ToString();

                tbSendDataStr = ht["tbSendDataStr"].ToString();

                if (cb16Send.Checked)

                    tbSendData.Text = ht["tbSendData16"].ToString();

                else

                    tbSendData.Text = ht["tbSendDataStr"].ToString();

            }

            #endregion

            tbSendData.Focus();

        }