当使用者觉得某个时刻的热饮温度刚刚好适合自己饮用时，就把杯子放到杯垫上，稍等五六秒钟，给DS18B20一点时间来升温，然后按下“记忆”键，此时杯子外部的温度就被记录到了单片机的eeprom里了，即便是断电后，此数据仍会存在-When the user feel a moment of hot temperatures just right for drinking, put the cup into their own on the coaster, wait five or six secon