温度自动控制系统程序的源程序，可以对温度进行控制。若温度低于设定温度，就继续加热，加热至设定温度；若温度高于设定温度，就停止加热，使温度降到设定温度。 -Automatic temperature control system program source, you can control the temperature. If the temperature is below the set temperature, the heating was continued, heated to the set temperature　if the temperature is higher than the set temperature, the heating is stopped, the temperature dropped to the set temperature.