说明：  本代码为ds1820单线数据传输温度传感器的应用程序，该传感器采用但数据线与单片机通过串口传递数据！本程序包括相关的协议，并且调试成功！
(The code for one-way data transmission ds1820 temperature sensor applications, the sensor uses the data lines with the single-chip data transmission through the serial port! This procedure, including the relevant agreement, and debugging success!)