初学51单片，写的几个小程序

#include
#include "delay.h"
#include
#define LEDPROT P0


/*第一种流水灯
unsigned char leddate[8] = {0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};


void main()
{
unsigned char i=0;
   while(1)
{
     LEDPROT = leddate[i];
i++;
 
if(8 == i)
{
        i=0;
     }
 
   delay_ms(20);
   }


}
*/


/*void main()
{
LEDPROT = 0xfe;
while(1)
{
LEDPROT = _crol_(LEDPROT,1);
 
 delay_s(1);
  }
}
*/




//???????
unsigned char leddate[7] = {0x7e,0xbd,0xdb,0xe7,0xdb,0xbd,0x7e};


void main()
{
unsigned char i = 0;


while(1)
{
LEDPROT = leddate[i];
i++;

if(7 == i)
{
i = 0;
}
delay_ms(50);
}

}

声音

#include
#include "delay.h"


#define LEDPROT P1


sbit BEEP=P0^5;


unsigned char leddata[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};


void main()
{
unsigned char i;
unsigned char j=9;
while(1)
{
if(j==0)
{
LEDPROT=0xc0;
for(i=0;i<100;i++)
{
        BEEP=~BEEP;
 delay_ms(1);
     }
   }
else
{
LEDPROT=leddata[j];
j--;
for(i=0;i<100;i++)
{
        BEEP=~BEEP;
 delay_ms(1);
     }
 
delay_s(1);
 
   }
}


}