中文说明：
PID温度控制，实现温度升降，通过调节其中的Kp，Ki，Kd，可以改变响应速度，可以消除振荡,通过改变传递函数可以改变响应速度。
English Description：
PID temperature control realizes temperature rise and fall. By adjusting KP, Ki and KD, the response speed can be changed and the oscillation can be eliminated. By changing the transfer function, the response speed can be changed