这个程序是基于QT的串口监测程序，通过串口与下位机通信，实现火灾烟雾报警和有害气体报警，涉及有串口通信，QT图片按钮操作，QT资源文件的操作，对初学者有一定参考意义。-This program is based on the QT serial monitoring program through the serial port communicate with lower achieve fire smoke alarms and harmful gas alarm, the operatio