这是一个温度控制系统，输入0~255之间的2个数值，一个最大值max一个最小值min，判断温度在何范围区间，分别用3个灯显示，其精度为1℃。-This is a temperature control system, input 0 ~ 255 2 value, a maximum value at a minimum max min, determine what range of temperature range, were shown with three lights, its accuracy is 1 ℃.