1.c

上传一些

#include<reg52.h>
#define uchar unsigned char 
uchar i,j,k,num,wei,i,r;
sbit dula=P2^6;
sbit wela=P2^7;
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,
                        0x07};
uchar code table1[]={0xff,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
void delay(uchar i)
{
  for(j=i;j>0;j--)
    for(k=125;k>0;k--);
}
void display(unsigned char num)
{
         P0=table[num];
         dula=1;
         dula=0;
			delay(5);
         P0=table1[num];
         wela=1;
         wela=0;
			delay(5);
			P0=table1[0];		//这里先关闭所有数码管，防止在下一次输入显示数的时候将上次显示的数，在上次的数码管上显示出来，造成视觉混乱
         wela=1;
         wela=0;
}
void main()
		{
			num=1;
			while(1)
				{
							if(num==7)	{num=1;}
							
								display(num);
							num++;	
				}

		}