解析：这个问题需要编写一个C51单片机程序，实现8个灯从中间到两边，再从两边到中间依次点亮的效果。 代码如下： ```c #include <reg52.h> #include <intrins.h> typedef unsigned char uchar; typedef unsigned int uint; sbit LED1 = P1^0; sbit LED2 = P1^1; sbit LED3 = P1^2; sbit LED4 = P1^3; sbit LED5 = P1^4; sbit LED6 = P1^5; sbit LED7 = P1^6; sbit LED8 = P1^7; void delay(uint z) { uint x, y; for (x = z; x > 0; x--) for (y = 110; y > 0; y--); } void main() { while (1) { LED4 = 0; LED5 = 0; LED6 = 0; LED7 = 0; delay(1000); LED3 = 0; LED4 = 1; LED5 = 1; LED6 = 1; delay(1000); LED2 = 0; LED3 = 1; LED4 = 1; LED5 = 1; LED6 = 1; delay(1000); LED1 = 0; LED2 = 1; LED3 = 1; LED4 = 1; LED5 = 1; LED6 = 1; delay(1000); LED1 = 1; LED2 = 1; LED3 = 1; LED4 = 1; LED5 = 1; LED6 = 1; LED7 = 0; delay(1000); LED1 = 1; LED2 = 1; LED3 = 1; LED4 = 1; LED5 = 1; LED6 = 1; LED7 = 1; LED8 = 0; delay(1000); LED7 = 1; LED8 = 1; delay(1000); } } ``` 这段代码首先定义了8个LED灯对应的端口，然后定义了一个延时函数`delay`，用于控制灯的点亮时间。在`main`函数中，通过循环和延时函数实现了8个灯从中间到两边，再从两边到中间依次点亮的效果。 [2024-06-22 22:13:57 | AI写代码神器 | 594点数解答]