两个定时实验，1.具体要求：采用定时器T0的溢出中断，单片机P1.0接发光二极管LED0。T0的每一次中断，在中断处理程序中都会对LED0的状态做一次改变（P1.0输出信号进行反转）。

2.具体要求：定时器T1每0.05秒中断一次，单片机P1口接8个发光二极管LED0～LED7，编写程序，使发光二极管有规律地循环点亮。例如：开机后，第一秒钟LED0、LED2亮，第二秒钟LED1、LED3亮，第三秒钟LED4、LED6亮，第四秒钟LED5、LED7亮，第五秒钟LED0、LED2、LED4、LED6亮，第六秒钟LED1、LED3、LED5、LED7亮，第七秒钟全亮，第八秒钟全灭；再从头开始一直循环下去。-Two experiments from time to time, 1. Specific requirements: the use of the T0 timer overflow interrupt, single-chip LED P1.0 then LED0. T0 every interruption, in the interrupt handling process LED0 will make a change in the state (P1.0 output signal inversion). 2. The specific requirements of: T1 timer interrupt once every 0.05 seconds, I received P1 single-chip 8 LED LED0 ~ LED7, the preparation procedure, so that light-emitting diode light cycle regularly. For example: boot, the first seconds LED0, LED2 light, the second a matter of seconds LED1, LED3-liang, the third seconds LED4, LED6 Liang, fourth seconds LED5, LED7 Liang, fifth seconds LED0, LED2, LED4 , LED6 Liang, Sixth seconds LED1, LED3, LED5, LED7 bright, bright full seconds seventh, eighth second body　again from the beginning has been the cycle continues.