由8031内部定时器1按方式1工作，即作为16位定时器使用，每0.1秒钟T1溢出中断一次。P1口的P1.0～P1.7分别接发光二极管的L1～L8。要求编写程序模拟一循环彩灯。彩灯变化花样可自行设计。例程给出的变化花样为：①L1、L2、…L8依次点亮；②L1、L2、…L8依次熄灭；③L1、L2、…L8全亮、全灭。各时序间隔为0.5秒。让发光二极管按以上规律循环显示下去。-By 8031 according to an internal timer means a work, that is, as a 16-bit timers, each of 0.1 seconds, T1 overflow interrupt time. P1 port P1.0 ~ P1.7 were then light-emitting diodes L1 ~ L8. Requested to prepare program to simulate a cycle of lights. Changes in pattern can design their own lantern. Given changes in routine patterns of: ① L1, L2, ... L8 followed by light　② L1, L2, ... L8 turn out　③ L1, L2, ... L8 full bright Quanmie. The timing interval is 0.5 seconds. Let the law of circulation by the above light-emitting diode display down.