51单片机温度控制程序，可应用于环境温度测试及冰箱和制冷设备的温度监测、控制，可根据代码对端口的定义，接入继电器控制加热设备及制冷设备。(51 single-chip temperature control procedures, temperature monitoring and control can be applied to environmental temperature test and refrigerator and refrigeration equipment, acco