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大键盘#include#define uchar unsigned char#define uint unsigned intsbit dula=P26;sbit wela=P27;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint x)uint i,j;for(i=x;i0;i-)for(j=100;j0;j-);void display(uchar num)P0=tablenum;dula=1;dula=0;void matrixkeyscan()uchar temp,key;P3=0xfe;temp=P3;temp=temp&0xf0;if(temp!=0xf0)delay(10);temp=P3;temp=temp&0xf0;if(temp!=0xf0)temp=P3;switch(temp)case 0xee:key=0;break;case 0xde:key=1;break;case 0xbe:key=2;break;case 0x7e:key=3;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;display(key);void main()P0=0;dula=1;dula=0;wela=1;P0=0x00;wela=0;while(1)matrixkeyscan();流水灯#include#define uchar unsigned char#define uint unsigned intsbit dula=P26;sbit wela=P27;uchar num;void delay(uint);uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint x)uint i,j;for(i=x;i0;i-)for(j=110;j0;j-);void main()while(1)dula=1;P0=table1;dula=0;P0=0xff;wela=1;P0=0xfe;wela=0;delay(500);dula=1;P0=table2;dula=0;P0=0xff;wela=1;P0=0xfd;wela=0;delay(500);dula=1;P0=table3;dula=0;P0=0xff;wela=1;P0=0xfb;wela=0;delay(500);dula=1;P0=table4;dula=0;P0=0xff;wela=1;P0=0xf7;wela=0;delay(500);dula=1;P0=table5;dula=0;P0=0xff;wela=1;P0=0xef;wela=0;delay(500);dula=1;P0=table6;dula=0;P0=0xff;wela=1;P0=0xdf;wela=0;delay(500);共阳极数字编码uchar code table=0xc0,0xf9,0xa4,0xb0, 0x99,0x92,0x82,0xf8, 0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;共阴极uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;延时程序msvoid delay(uint x)uint i,j;for(i=x;i0;i-)for(j=110;j0;j-);四个键盘检测#include#define uchar unsigned char#define uint unsigned intsbit dula=P26;sbit wela=P27;sbit key1=P34;sbit key2=P35;sbit key3=P36;sbit key4=P37;uchar numt0,num;void delay(uint);uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint x)uint i,j;for(i=x;i0;i-)for(j=110;j0;j-);void display(uchar numdis)uchar shi,ge;shi=numdis/10;ge=numdis%10;dula=1;P0=tableshi;dula=0;P0=0xff;wela=1;P0=0xfd;wela=0;delay(5);dula=1;P0=tablege;dula=0;P0=0xff;wela=1;P0=0xfe;wela=0;delay(5);void init()TMOD=0X01;TH0=(65536-45872)/256;TL0=(65536-45872)%256;EA=1;ET0=1;void keyscan()if(key1=0)delay(10);if(key1=0)num+;if(num=60)num=0;while(!key1);if(key2=0)delay(10);if(key2=0)if(num=00)num=60;num-;while(!key2);if(key3=0)delay(10);if(key3=0)num=0;while(!key1);if(key4=0)delay(10);if(key4=0)while(!key1);TR0=TR0;void main()init();while(1)keyscan();display(num);void T0_time() interrupt 1TH0=(65536-45872)/256;TL0=(65536-45872)%256;numt0+;if(numt0=20)numt0=0;num+;if(num=60)num=0;数码管全亮，依次显示0到F，时间间隔1秒#include#define uchar unsigned char#define uint unsigned intuchar a;sbit wei1=P10;sbit wei2=P11;sbit wei3=P12;sbit wei4=P13;uchar code table=0xc0,0xf9,0xa4,0xb0, 0x99,0x92,0x82,0xf8, 0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;void delay(uint);void main()wei1=0;wei2=0;wei3=0;wei4=0;while(1)for(a=0;a0;i-)for(j=110;j0;j-);#include#include#defined uint unsigned int#defined uchar unsigned charuchar temp,aa,num;void delay(uint);uchar code table=0xc0,0xf9,0xa4,0xb0, 0x99,0x92,0x82,0xf8, 0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;void main()TMOD=0X01;THO=(65536-50000)/256;TLO=(65536-50000)%256;EA=1;ET0=1;TR0=1;temp=0xfe;while(1)P0=temp;temp=_crol_(temp,1);delay(1000);void delay(uint z)uint i,j;for(i=z;i0;i-)for(j=110;j0;j-);void tempter() interrupt 1THO=(65536-50000)/256;TLO=(65536-50000)%256;aa+;if(aa=40)aa=0;P1=0x00;P0=table=num;num+;if(num=16)num=0;付账号： 6217 0001 1000 2614 2479052#include#define uchar unsigned char#define uint unsigned intsbit key1=P20;sbit key2=P21;sbit key3=P22;sbit key4=P23;sbit shi1=P10;sbit ge1=P11;uchar code table=0xc0,0xf9,0xa4,0xb0, 0x99,0x92,0x82,0xf8, 0x80,0x90,0x88,0x83, 0xc6,0xa1,0x86,0x8e;void delay(uint);uchar num0;num,aa;void display(uchar num1)uchar shi,ge;shi=num1/10;ge=num1%10;shi1=1;P0=tableshi;delay(5);shi1=0;ge1=1;P0=tablege;delay(50);ge1=0; void delay(uint x)uint i,j;for(i=x;i0;i-)for(j=110;j0;j-);/*void init()TMOD=0x01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;*/void keyscon()if(key1=0)delay(10);if(key1=0)num+;if(num60)num=0;while(!key1);if(key2=0)delay(10);if(key2=0)if(num=0)num=60;num-;while(!key2);if(key3=0)delay(10);if(key3=0)num=0;while(!key3);if(key4=0)delay(10);if(key4=0)while(!key4);TR0=TR0; void main()TMOD=0x01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;/init();while(1)keyscon();display(num);void TO_time() interrupt 1TH0=(65536-50000)/256;TL0=(65536-50000)%256;aa+;if(aa=20) aa=0;num+;if(num=60)num=0;数码管使用#include#define uchar unsigned char#define uint unsigned intsbit dula=P26;sbit wela=P27;uchar num;void delay(uint);uchar co