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 operation involving serial communication, QT image button operation, QT resource files, for beginners are meaningful.