SerialPortDemo:使用Java实现的串口通信示例，可在Windows、Linux、Mac系统上运行

串行端口演示 串口通信Demo 执照 Copyright (C) 2017 YangLe Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOU