单片机，此程序是使用DS18B20集成数字温度传感器测量温度的实用程序，采用的是12位12位单点采样模式,采样周期约0.8秒钟,每按键一次就采样一次-Single-chip, this program is a utility to use the the DS18B20 integrated digital temperature sensor to measure temperature, using 12, 12, single point sampling mode, sampling period of about 0.8 seconds, once every key sampled once