基于C8051单片机,用18b20测量温度，并显示在LCD1602上，且能够对温度上下限做出相应反应的详细代码，在Keil4环境下运行-C8051-based microcontroller, with 18b20 measuring temperature, and displayed on the LCD1602, and able to respond accordingly lower the temperature on the details of the code, run the