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- /*************** writer:shopping.w ******************/
- #include <reg52.h>
- #define uint unsigned int
- #define uchar unsigned char
- void Delay(uint x)
- {
- uchar i;
- while(x--)
- {
- for(i=0;i<120;i++);
- }
- }
- void main()
- {
- P2 = 0x00;
- while(1)
- {
- P2 = (P2+1)%8;
- Delay(50);
- }
- }
復(fù)制代碼
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