Uint compare (uint Xia, uint shang, uint wen)//Xia is the lower limit temperature, shang is the upper limit temperature, and wen is the real-time temperature.

{

int t；

If (Wen< Xia || Wen> Shang)

t = 1；

Otherwise t = 0；;

Return (t);

}

//Out of range, the return value is 1, otherwise it is 0.