51学习资料啊啊51学习资料啊啊

#include"reg52.h" sbit led1=P1^0; sbit wei1=P2^7; sbit wei2=P2^6; sbit wei3=P2^5; sbit wei4=P2^4; sbit P3_5=P3^5; unsigned char table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; unsigned char tableY[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; unsigned char s=0,ms,num1=0,num2=0,shi,ge,keycnt=0,sec,tcnt=0; unsigned char qian,bai,shi, ge; void delay100ms(unsigned char ms); void display(unsigned int s,unsigned int m); /*ÑÓʱ100msÑÓʱº¯Êý*/ void delay100ms(unsigned char ms) { unsigned char n,m; for(;ms;ms--) { for(n=10;n;n--) { for(m=250;m;m--); } } } void KEY()//°´¼üɨÃè³ÌÐò { unsigned char i,j; if(P3_5==0) { delay100ms(1); if(P3_5==0) { keycnt++; /*°´Ï´ÎÅжϺ¯Êý*/ switch(keycnt)//°´Ï´ÎÅÐ¶Ï { case 1://µÚÒ»´Î°´Ï TR1=1;//¿ªÊ¼¶¨Ê± break; case 2://µÚ¶þ´Î°´Ï TR1=0;// break; case 3: keycnt=0;//µÚÈý´Î°´Ï ge=0; shi=0; bai=0; qian=0; break; } while(P3_5==0); } } } void display(unsigned int m ,unsigned int s) { unsigned char qian,bai,shi,ge; qian=m%100/10; bai=m%10; shi=s%100/10; ge=s%10; wei1=0;wei2=1;wei3=1;wei4=1;P0=table[ge]; delay100ms(1);P0=0xff;//λѡ£¬¸öλ wei1=1;wei2=0;wei3=1;wei4=1;P0=table[shi];delay100ms(1);P0=0xff;//λѡ£¬Ê®Î» wei1=1;wei2=1;wei3=0;wei4=1;P0=table[bai];delay100ms(1);P0=0xff;//λѡ£¬°Ùλ wei1=1;wei2=1;wei3=1;wei4=0;P0=table[qian];delay100ms(1);P0=0xff;//λѡ£¬Ç§Î» } //void T0_time () interrupt 1 //{ // TH0=(65536-45872)/256; // TL0=(65536-45872)%256; // led1=~led1; //} void timer1_ISR() interrupt 3 { TH1=(65536-45872)/256; TL1=(65536-45872)%256; tcnt++; if(tcnt==400) { tcnt=0; } } void main() { unsigned char s,m; TMOD=0x11; // TH0=(65536-45872)/256; // TL0=(65536-45872)%256; TH1=(65536-45872)/256; TL1=(65536-45872)%256; EA=1; // ET0=1; ET1=1; // TR0=1; TR1=0; while(1) { KEY(); s++; P1=0x00; display(m,s); if(s>=60){ s=0; m++; } } }