1、#include#define uchar unsigned char #define uint unsigned intuchar code table=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90;uchar aa,shi,fen,miao;uchar temp;void delay(uint z)/延时uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);void SHIFENMIAO(int shi,int fen,int miao)/显示秒P2=0xfd;P0=tablemiao/10;delay(1);
2、P2=0xfe;P0=tablemiao%10;delay(1);P0=0xff;P2=0xf7;P0=tablefen/10;delay(1);P2=0xfb;P0=tablefen%10;delay(1);P0=0xff;P2=0xfb;P0=0x7f;delay(1);P2=0xdf;P0=tableshi/10;delay(1);P2=0xef;P0=tableshi%10;delay(1);P0=0xff;P2=0xef;P0=0x7f;delay(1);void init()TMOD=0x01;/使用定时器 T0EA=1;/开总中断ET0=1;/开 T0 中断TH0=(65536-
3、46080)/256;TL0=(65536-46080)%256;/赋初值TR0=1;/开定时器aa=0;shi=0;fen=0;miao=0;/初始化变量void main()init();while(1)SHIFENMIAO(shi,fen,miao);void term0()interrupt 1aa+;if(aa=20)aa=0;miao+;if(miao=60)miao=0;fen+;if(fen=60)fen=0;shi+;if(shi=24)shi=0;TH0=(65536-46080)/256;TL0=(65536-46080)%256;P3=0xef;temp=P3;temp=tempwhile(temp!=0x0f)delay(2);temp=P3;temp=tempwhile(temp!=0x0f)temp=P3;switch(temp)case 0xee:miao+;if(miao=60)miao=0;break;case 0xed:fen+;if(fen=60)fen=0;break;case 0xeb:shi+;if(shi=24)shi=0;break;/ case 0xe7:num=4;/ break;while(temp!=0x0f)temp=P3;temp=temp
