using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.IO.Ports;

namespace?RS232
{
????public?partial?class?Form1?:?Form
????{
????????SerialPort?sp?=?null;//聲明一個串口類
????????bool?isOpen?=?false;//打開串口標志位
????????bool?isSetProperty?=?false;//屬性設置標志位
????????bool?isHex?=?false;//十六進制顯示標志位
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

???????
????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????this.MaximumSize?=?this.Size;
????????????this.MinimumSize?=?this.Size;
????????????this.MaximizeBox?=?false;
????????????for?（int?i?=?0;?i?