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利用单片机技术编一个秒表程序，感觉很酷 #include <reg51.h> #define uint unsigned int #define uchar unsigned char uint jishu,sec,fen; uchar i=0; uint array1[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8, 0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e}; uint array2[]={0x1f,0x2f,0x4f,0x8f}; uint cunshu[]={0,0,0,0}; void init(){ TMOD=0x11; ET0=1; TR0=1; TH0=(65536-50000)/256; TL0=(65536-50000)%256; ET1=1; TR1=1; TH1=(65536-1000)/256; TL1=(65536-1000)%256; EA=1; } void zhongduan0() interrupt 1{ TH0=(65536-50000)/256; TL0=(65536-50000)%256; jishu++; } void zhongduan1() interrupt 3{ TH1=(65536-1000)/256; TL1=(65536-1000)%256; if(i<=3){ P2=array2[i]; P0=array1[cunshu[i]]; } i++; if(i>=4) i=0; } void renew(){ if(jishu>=20){ sec++; jishu=0; } if(sec>=60){ fen++; sec=0; } if(fen>=60) fen=0; cunshu[0]=sec%10; cunshu[1]=sec/10; cunshu[2]=fen%10; cunshu[3]=fen/10; } void main(){ init(); while(1){ renew(); } }