用51单片机一个按键控制八个灯，让八个灯有不同形态的亮法，另一个按键控制过程的暂停和继续

这个问题可以通过编写一个简单的程序来实现。首先，我们需要定义一个变量来存储当前灯的状态，然后在按下按键时，将变量的值加1，然后根据变量的值来控制灯的亮灭。我们还需要定义一个变量来存储当前程序的状态，以便在按下另一个按键时暂停或继续程序的执行。

以下是一个简单的示例程序：

#include <reg51.h>

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;

sbit KEY1 = P2^0;
sbit KEY2 = P2^1;

unsigned char led_state = 0;
unsigned char program_state = 1;

void delay(unsigned int t)
{
    unsigned int i, j;
    for(i = 0; i < t; i++)
        for(j = 0; j < 100; j++);
}

void main()
{
    while(1)
    {
        if(KEY1 == 0)
        {
            led_state++;
            if(led_state > 7)
                led_state = 0;
            delay(50);
        }

        if(KEY2 == 0)
        {
            program_state = !program_state;
            delay(50);
        }

        if(program_state)
        {
            switch(led_state)
            {
                case 0:
                    LED1 = 1;
                    LED2 = 0;
                    LED3 = 0;
                    LED4 = 0;
                    LED5 = 0;
                    LED6 = 0;
                    LED7 = 0;
                    LED8 = 0;
                    break;
                case 1:
                    LED1 = 1;
                    LED2 = 1;
                    LED3 = 0;
                    LED4 = 0;
                    LED5 = 0;
                    LED6 = 0;
                    LED7 = 0;
                    LED8 = 0;
                    break;
                case 2:
                    LED1 = 1;
                    LED2 = 1;
                    LED3 = 1;
                    LED4 = 0;
                    LED5 = 0;
                    LED6 = 0;
                    LED7 = 0;
                    LED8 = 0;
                    break;
                case 3:
                    LED1 = 1;
                    LED2 = 1;
                    LED3 = 1;
                    LED4 = 1;
                    LED5 = 0;
                    LED6 = 0;
                    LED7 = 0;
                    LED8 = 0;
                    break;
                case 4:
                    LED1 = 1;
                    LED2 = 1;
                    LED3 = 1;
                    LED4 = 1;
                    LED5 = 1;
                    LED6 = 0;
                    LED7 = 0;
                    LED8 = 0;
                    break;
                case 5:
                    LED1 = 1;
                    LED2 = 1;
                    LED3 = 1;
                    LED4 = 1;
                    LED5 = 1;
                    LED6 = 1;
                    LED7 = 0;
                    LED8 = 0;
                    break;
                case 6:
                    LED1 = 1;
                    LED2 = 1;
                    LED3 = 1;
                    LED4 = 1;
                    LED5 = 1;
                    LED6 = 1;
                    LED7 = 1;
                    LED8 = 0;
                    break;
                case 7:
                    LED1 = 1;
                    LED2 = 1;
                    LED3 = 1;
                    LED4 = 1;
                    LED5 = 1;
                    LED6 = 1;
                    LED7 = 1;
                    LED8 = 1;
                    break;
            }
        }
    }
}