數(shù)據(jù)驅(qū)動、堅持為客戶提供有價值的服務和內(nèi)容
#include#define?uchar?unsigned?charvoid?delay(void){uchar?念搜返i,j;for(i=0;i<200;i++)for(j=0;j<120;j++);}void?ext0()?interrupt?0{uchar?i;for(i=0;i<8;i++)????{????P2=0x00;????delay();????P2=0xff;????delay()