using?System;
using?System.IO.Ports;
using?System.Threading;
public?class?PortChat
{
????static?SerialPort?_serialPort;
????static?bool?_continue?=?true?;
????public?static?void?Main（）
????{
????????//繼承serialport的默認設置
????????_serialPort?=?new?SerialPort（）;
????????//設置串口號
????????string?portname;
????????Console.WriteLine（“現有的端口:“）;
????????foreach?（string?available?in?SerialPort.GetPortNames（））
????????{
????????????Console.WriteLine（“{0}“?available?）;
????????}
????????_setcomport:
????????Console.Write（“請輸入用來通訊的COM口?:?“）;
????????portname?=?Console.ReadLine（）;
????????if?（portname?==?““）
????????{
????????????Console.WriteLine（“重新輸入“）;
????????????goto?_setcomport;
????????}
????????_serialPort.PortName?=?portname;
????????//輸入用戶名字，便于區分
????????string?name;
????????string?message;
????????Console.Write（“輸入通訊聊天用的名字:?“）;
????????name?=?Console.ReadLine（）;
????????Console.WriteLine（“輸入q