18B20单线温度检测的应用样例程序,请将18b20插紧， 然后在数码管可以显示XX.XC，C表示摄氏度，如显示25.3C表示当前温度25.3度-18B20 single sample temperature measurement application procedures, please 18b20 seated, and then in the digital control can display XX.XC, C said degrees Celsius, such as th