c语言怎么编程8盏灯轮流闪亮

时间:2025-01-29 00:24:40 网络游戏

要实现8盏灯轮流闪亮,可以使用C语言编写一个程序,通过控制单片机的端口来点亮和熄灭LED灯。以下是几种不同的实现方法:

方法一:使用循环左移操作

```c

include

typedef unsigned int u16;

typedef unsigned char u8;

sbit leda = P0;

sbit led1 = P0^0;

sbit led2 = P0^1;

sbit led3 = P0^2;

sbit led4 = P0^3;

sbit led5 = P0^4;

sbit led6 = P0^5;

sbit led7 = P0^6;

sbit led8 = P0^7;

void delay(u16 i) {

while(i--);

}

void main() {

while(1) {

leda = 1; // 全部灯亮

// 从左到右依次熄灭

led1 = 0; delay(50000); // 大约延时450ms

led2 = 0; delay(50000); // 大约延时450ms

led3 = 0; delay(50000); // 大约延时450ms

led4 = 0; delay(50000); // 大约延时450ms

led5 = 0; delay(50000); // 大约延时450ms

led6 = 0; delay(50000); // 大约延时450ms

led7 = 0; delay(50000); // 大约延时450ms

led8 = 0; delay(100000); // 大约延时900ms

leda = 1;

}

}

```

方法二:使用数组和循环

```c

include

typedef unsigned int u16;

typedef unsigned char u8;

sbit leda = P0;

sbit led1 = P0^0;

sbit led2 = P0^1;

sbit led3 = P0^2;

sbit led4 = P0^3;

sbit led5 = P0^4;

sbit led6 = P0^5;

sbit led7 = P0^6;

sbit led8 = P0^7;

void delay(u16 i) {

while(i--);

}

void main() {

while(1) {

u8 led_array = {0xFF, 0xFE, 0xFD, 0xFC, 0xFB, 0xFA, 0xF9, 0xF8};

for(u8 i = 0; i < 8; i++) {

P0 = led_array[i];

delay(50000); // 大约延时450ms

}

}

}

```

方法三:使用定时器和中断