4. C语言源程序
#include <AT89X52.H>
unsigned char ps[]={1,2,3,4,5};
unsigned char code dispbit[]={0xfe,0xfd,0xfb,0xf7,
0xef,0xdf,0xbf,0x7f};
unsigned char code dispcode[]={0x3f,0x06,0x5b,0x4f,0x66,
0x6d,0x7d,0x07,0x7f,0x6f,
0x77,0x7c,0x39,0x5e,0x79,0x71,
0x00,0x40,0x73,0xff};
unsigned char dispbuf[8]={18,16,16,16,16,16,16,16};
unsigned char dispcount;
unsigned char flashcount;
unsigned char temp;
unsigned char key;
unsigned char keycount;
unsigned char pslen=5;
unsigned char getps[6];
bit keyoverflag;
bit errorflag;
bit rightflag;
unsigned int second3;
unsigned int aa,bb;
unsigned int cc;
bit okflag;
bit alarmflag;
bit hibitflag;
unsigned char oka,okb;
void main(void)
{
unsigned char i,j;
TMOD=0x01;
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