- #include<reg51.h>
- #define uchar unsigned char
- #define uint unsigned int
- uchar code tab[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07};
- sbit one = P1^0;
- sbit two = P1^1;
- sbit three = P1^2;
- sbit four = P1^3;
- sbit five = P1^4;
- sbit six = P1^5;
- sbit seven = P1^6;
- sbit eight = P1^7;
- uchar count;
- void delay(int i)
- {
- uint j;
- while(i--)
- {
- for(j=0;j<125;j++) {;}
- }
- }
- void display()
- {
- P2 = tab[count];
- delay(1000);
- }
- void getcount()
- {
- if(one ==0)
- count = 0;
- else if(two ==0)
- count = 1;
- else if(three ==0)
- count = 2;
- else if(four ==0)
- count = 3;
- else if(five ==0)
- count = 4;
- else if(six ==0)
- count = 5;
- else if(seven ==0)
- count = 6;
- else if(eight ==0)
- count = 7;
-
- }
- void main()
- {
- P2 = 0x00;
- while(1)
- {
- getcount();
- display();
- }
- }
| 
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