Proteus单片机显示口字及源代码

#include "reg51.h"
//#include "myh.h"
int main()
{
	int row=0,col=0;
	int i=0;
	int leda[8]={0,~0x81,~0x81,~0x81,~0x81,~0x81,~0x81,0   };
	int ledb[8]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80  };
	while(1)
	{
		for(row=0;row<8;row++)
		{
				P2=leda[row]  ;
				P3=ledb[row]  ;
				sleep(100);
				P2=0XFF;
				
		}
	};
	return 0;
}

void sleep(long int a)
{
	long int i=0;
	for(i=0;i<a;i++)
	{
		;
	}
}