51单片机led显示随机乘法口诀的代码

以下是基于51单片机的LED显示随机乘法口诀的代码：

#include <reg52.h>
#include <stdlib.h>

// 定义IO口
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;

// 定义随机数函数
unsigned char random() {
    unsigned char num = rand() % 8 + 1;
    return num;
}

// 定义延时函数
void delay(unsigned int x) {
    unsigned int i, j;
    for(i = x; i > 0; i--) {
        for(j = 110; j > 0; j--);
    }
}

void main() {
    unsigned char a, b;
    unsigned int result;
    while(1) {
        a = random();
        b = random();
        result = a * b;
        LED1 = result & 0x01;
        LED2 = (result >> 1) & 0x01;
        LED3 = (result >> 2) & 0x01;
        LED4 = (result >> 3) & 0x01;
        LED5 = (result >> 4) & 0x01;
        LED6 = (result >> 5) & 0x01;
        LED7 = (result >> 6) & 0x01;
        LED8 = (result >> 7) & 0x01;
        delay(1000);
    }
}

该代码实现了随机产生两个1~8之间的数字，并计算它们的乘积，然后将乘积的二进制数码分别显示在8个LED上，每隔1秒钟更新一次。