编写完整程序实现如下模拟彩灯，2 个按键分别为K1、K2,8 个灯为L1-L8,按下K1键按L

假设P1接8个灯，高电平灯亮,主程序如下：

#include "reg51h"

sbit k1=P2^0;

sbit k2=P2^1;

unsigned char flag=0;

void main( )

{

unsigned char i;

while(1)

{

if(k1==0)

{

delayms(10);

if(k1==0)

{flag=1;}

}

if(flag==1)

{

P1=0X03;

for(i=0;i<7;i++)

{ delayms(500); P1<<=1; }

}

if(k2==0)

{

delayms(10);

if(k2==0){flag=2;}

}

if( flag==2) { P1=0X00;}

}

}

不过程序有个问题，按K1后双灯流水，K2不起作用，必须等流水完 成后才可以检测到 K2

如果数码管是共阴极的，则是把其中一个置高就会让该led亮起来。然后延时（没有延时的话是看不到效果的），再让下一个灯亮起来，再延时，……以此类推，就可以了！

电路给我，我可以帮你写程序！

你的要求也太高了吧，还是请一个软件工程师给你做啦。我们在网上回答也没有报酬，现在设计个软件也是要很多钱的。

我有个万能跑马灯程序，有10种闪灯样式，其实你只用把灯的摆放顺序打乱也可获得想要的发光样式。

#include <REG52H>

unsigned char RunMode;

void Delay1ms(unsigned int count)

{

unsigned int i,j;

for(i=0;i<count;i++)

for(j=0;j<120;j++);

}

unsigned char code LEDDisplayCode[] = { 0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8, //0~7

0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E,0xFF};

void Display(unsigned char Value)

{

P3 = LEDDisplayCode[Value];

}

void LEDFlash(unsigned char Count)

{

unsigned char i;

bit Flag;

for(i = 0; i<Count;i++)

{

Flag = !Flag;

if(Flag)

Display(RunMode);

else

Display(0x10);

Delay1ms(100);

}

Display(RunMode);

}

unsigned char GetKey(void)

{

unsigned char KeyTemp,CheckValue,Key = 0x00;

CheckValue = P2&0x32;

if(CheckValue==0x32)

return 0x00;

Delay1ms(10);

KeyTemp = P2&0x32;

if(KeyTemp==CheckValue)

return 0x00;

if(!(CheckValue&0x02))

Key|=0x01;

if(!(CheckValue&0x10))

Key|=0x02;

if(!(CheckValue&0x20))

Key|=0x04;

return Key;

}

unsigned int TimerCount,SystemSpeed,SystemSpeedIndex;

void InitialTimer2(void)

{

T2CON = 0x00; //16 Bit Auto-Reload Mode

TH2 = RCAP2H = 0xFC; //重装值,初始值 TL2 = RCAP2L = 0x18;

ET2=1; //定时器 2 中断允许

TR2 = 1; //定时器 2 启动

EA=1;

}

unsigned int code SpeedCode[]={ 1, 2, 3, 5, 8, 10, 14, 17, 20, 30,

40, 50, 60, 70, 80, 90, 100, 120, 140, 160,

180, 200, 300, 400, 500, 600, 700, 800, 900,1000};//30

void SetSpeed(unsigned char Speed)

{

SystemSpeed =SpeedCode[Speed];

}

void LEDShow(unsigned int LEDStatus)

{

P1 = ~(LEDStatus&0x00FF);

P0 = ~((LEDStatus>>8)&0x00FF);

}

void InitialCPU(void)

{

RunMode = 0x00;

TimerCount = 0;

SystemSpeedIndex = 10;

P1 = 0x00;

P0 = 0x00;

P2 = 0xFF;

P3 = 0x00;

Delay1ms(500);

P1 = 0xFF;

P0 = 0xFF;

P2 = 0xFF;

P3 = 0xFF;

SetSpeed(SystemSpeedIndex);

Display(RunMode);

}

//Mode 0

unsigned int LEDIndex = 0;

bit LEDDirection = 1,LEDFlag = 1;

void Mode_0(void)

{

LEDShow(0x0001<<LEDIndex);

LEDIndex = (LEDIndex+1)%16;

}

//Mode 1

void Mode_1(void)

{

LEDShow(0x8000>>LEDIndex);

LEDIndex = (LEDIndex+1)%16;

}

//Mode 2

void Mode_2(void)

{

if(LEDDirection)

LEDShow(0x0001<<LEDIndex);

else

LEDShow(0x8000>>LEDIndex);

if(LEDIndex==15)

LEDDirection = !LEDDirection;

LEDIndex = (LEDIndex+1)%16;

}

//Mode 3

void Mode_3(void)

{

if(LEDDirection)

LEDShow(~(0x0001<<LEDIndex));

else

LEDShow(~(0x8000>>LEDIndex));

if(LEDIndex==15)

LEDDirection = !LEDDirection;

LEDIndex = (LEDIndex+1)%16;

}

//Mode 4

void Mode_4(void)

{

if(LEDDirection)

{

if(LEDFlag)

LEDShow(0xFFFE<<LEDIndex);

else

LEDShow(~(0x7FFF>>LEDIndex));

}

else

{

if(LEDFlag)

LEDShow(0x7FFF>>LEDIndex);

else

LEDShow(~(0xFFFE<<LEDIndex));

}

if(LEDIndex==15)

{

LEDDirection = !LEDDirection;

if(LEDDirection) LEDFlag = !LEDFlag;

}

LEDIndex = (LEDIndex+1)%16;

}

//Mode 5

void Mode_5(void)

{

if(LEDDirection)

LEDShow(0x000F<<LEDIndex);

else

LEDShow(0xF000>>LEDIndex);

if(LEDIndex==15)

LEDDirection = !LEDDirection;

LEDIndex = (LEDIndex+1)%16;

}

//Mode 6

void Mode_6(void)

{

if(LEDDirection)

LEDShow(~(0x000F<<LEDIndex));

else

LEDShow(~(0xF000>>LEDIndex));

if(LEDIndex==15)

LEDDirection = !LEDDirection;

LEDIndex = (LEDIndex+1)%16;

}

//Mode 7

void Mode_7(void)

{

if(LEDDirection)

LEDShow(0x003F<<LEDIndex);

else

LEDShow(0xFC00>>LEDIndex);

if(LEDIndex==9)

LEDDirection = !LEDDirection;

LEDIndex = (LEDIndex+1)%10;

}

//Mode 8

void Mode_8(void)

{

LEDShow(++LEDIndex);

}

void TimerEventRun(void)

{

if(RunMode==0x00)

{

Mode_0();

}

else if(RunMode ==0x01)

{

Mode_1();

}

else if(RunMode ==0x02)

{

Mode_2();

}

else if(RunMode ==0x03)

{

Mode_3();

}

else if(RunMode ==0x04)

{

Mode_4();

}

else if(RunMode ==0x05)

{

Mode_5();

}

else if(RunMode ==0x06)

{

Mode_6();

}

else if(RunMode ==0x07)

{

Mode_7();

}

else if(RunMode ==0x08)

{

Mode_8();

}

}

void Timer2(void) interrupt 5 using 3

{

TF2 = 0; //中断标志清除( Timer2 必须软件清标志!)

if(++TimerCount>=SystemSpeed)

{

TimerCount = 0;

TimerEventRun();

}

}

unsigned char MusicIndex = 0;

void KeyDispose(unsigned char Key)

{

if(Key&0x01)

{

LEDDirection = 1;

LEDIndex = 0;

LEDFlag = 1;

RunMode = (RunMode+1)%9;

Display(RunMode);

}

if(Key&0x02)

{

if(SystemSpeedIndex>0)

{

--SystemSpeedIndex;

SetSpeed(SystemSpeedIndex);

}

else

{

LEDFlash(6);

}

}

if(Key&0x04)

{

if(SystemSpeedIndex<28)

{

++SystemSpeedIndex;

SetSpeed(SystemSpeedIndex);

}

else

{

LEDFlash(6);

}

}

}

main()

{

unsigned char Key;

InitialCPU();

InitialTimer2();

while(1)

{

Key = GetKey();

if(Key!=0x00)

{

KeyDispose(Key);

}

}

}

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