數碼管和流水燈同時工作

#includereg52.h>#define uint unsigned int#define uchar unsigned charuchar code temp[]={0x80,0xe3,0x44,0x41,0x23,0x11,0x10,0xc3,0x00,0x01};

//數碼管由0~9的顯示char code b[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xbf,

0xdf,0xef,0xf7,0xfb,0xfd,0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,0x01,0x03,0x07,0x0f,0x1f,

0x3f,0x7f,0xff,0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,0x00};//流水燈先是逐個閃動，

后反向閃動，再全部閃動，再反向全部閃動。void delay(uint time)//延時函數{while(time--);}void main() //主函數{uint k,l;uchar i,j;j=0;while(1){for(i=0;i10;i++){P1=temp;P2=b[j]; for(l=0;l100;l++)for(k=0;k5;k++)delay(10);j++;if(j==38)j=0;}}}缺點：單片機兩個IO口不能同時獨立工作！