红绿灯闪烁次数的编程可以通过多种方法实现,具体取决于你使用的编程语言和硬件平台。以下是几种不同编程语言实现红绿灯闪烁的示例代码:
使用C语言和定时器
```c
include include define RED 0x3C define GREEN 0x3E define YELLOW 0x3D int main() { int state = RED; int delay = 5; // 5秒 while (1) { switch (state) { case RED: printf("红灯亮\n"); sleep(delay); break; case GREEN: printf("绿灯亮\n"); sleep(delay); break; case YELLOW: printf("黄灯亮\n"); sleep(delay); break; } // 闪烁6次 for (int i = 0; i < 6; i++) { P1 = state; delay(1); P1 = 0x00; delay(1); } state = (state == RED) ? GREEN : (state == GREEN) ? YELLOW : RED; } return 0; } ``` 使用梯形图和定时器 ```c include define T0 25000 // 东西绿灯定时 25s define T1 28000 // 东西绿灯闪烁定时 3s define T2 30000 // 南北红灯定时 30s define T3 55000 // 南北绿灯定时 25s define T4 58000 // 南北绿灯闪烁定时 3s define T5 60000 // 东西红灯定时 30s void timer0() interrupt 1 { // 东西绿灯闪烁 if (TH0 < T1) { P1 = 0x7C; } else { P1 = 0x3C; } } void timer1() interrupt 2 { // 南北绿灯闪烁 if (TH0 < T4) { P1 = 0x66; } else { P1 = 0x5C; } } int main() { TH0 = 0x00; TL0 = 0x00; ET0 = 1; TR0 = 1; while (1) { // 东西绿灯亮25s if (TH0 < T0) { P1 = 0x3E; } else if (TH0 < T0 + T1) { // 东西绿灯闪烁3s if (TH0 < T1) { P1 = 0x7C; } else { P1 = 0x3C; } } else if (TH0 < T0 + T1 + T2) { // 南北红灯亮30s P1 = 0x3C; } else if (TH0 < T0 + T1 + T2 + T3) { // 南北绿灯亮25s P1 = 0x5C; } else if (TH0 < T0 + T1 + T2 + T3 + T4) { // 南北绿灯闪烁3s if (TH0 < T4) { P1 = 0x66; } else { P1 = 0x5C; } } else if (TH0 < T0 + T1 + T2 + T3 + T4 + T5) { // 东西红灯亮30s P1 = 0x3C; } } return 0; } ``` 使用Python和RPi.GPIO库