51单片机常见的五种流水灯编写方式

1、For personal use only in study and research;not for commercial use 51单片机常见的五种流水灯编写方式通过改变赋值实现流水灯void mai n()while(1)P2=0 xfe;delay1ms(500);P2=0 xfd;delay1ms(500);P2=0 xfb;delay1ms(500);P2=0 xf7;delay1ms(500);P2=0 xef;delay1ms(500);P2=0 xdf;delay1ms(500);P2=0 xbf;delay1ms(500);P2=0 x7f; delay1ms(500);

2、通过公式运算实现流水灯void mai n()while(1) uint a,b=1;P2=0 xfe; delayms(500); for(a=0;a7;a+)P2-=b; / P2=P2-bdelayms(500);b=b*2; /都化为同一类型进制运算通过操作符 与“| ”实现流水灯(通过移位实现流水灯)void main()uchar a,i;while(1)a=0 xfe; /点亮第一位LED灯for(i=0;i8;i+)P2=a;a=a1; /左移一位a=a|0 x01; /左移一位后与0 x01相或，保证左移后最低位为1 delay_ms(500);通过库函数_crol_ (字符

3、左移)实现流水灯void main()uint a;a=0 xfe;while(1)P2=a;a=_crol_(a,1);delay_ms(500);采用数组实现流水灯uchar code table=0 xfe,0 xfd,0 xfb,0 xf7,0 xef,0 xdf,0 xbf,0 x7f; void main(void)uchar i;while (1)for(i=0;i8;i+) 循环点亮8只LED灯P2=tablei;delay_ms(500); /延时500毫秒仅供个人用于学习、研究；不得用于商业用途。For personal use only in study and rese

4、arch; not for commercial use.Nur fur den pers?nlichen fur Studien, Forschung, zu kommerziellen Zwecken verwendet werden.Pour l etude et la recherche uniquementades fins personnelles; pasades fins commerciales.ToJI E Kogfljirogeifcc,TOpBicnob3 groimio麻yqeHuicic码egoBua H Hudo员冶HBIucno员B30BaTbCEBKoMMep

5、qeckux qeiix.-以下无正文-仅供个人用于学习、研究；不得用于商业用途。For personal use only in study and research; not for commercial use.Nur fur den pers?nlichen fur Studien, Forschung, zu kommerziellen Zwecken verwendet werden.Pour l etude et la recherche uniquementades fins personnelles; pasades fins commerciales.ToJI E Kogfljirogeifcc,TOpBicno