1、#include#define uint unsigned int#define uchar unsigned charsbit dula=P2A6;sbit wela=P2A7;sbit key1=P3A4;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71,0;uchar num,temp,num1;void delay(uint z)uint x,y;for(x=z;x0;x-) for(y=110;y0;y-);uchar keyscan();

2、void display(uchar aa);void main()num=17;dula=1;P0=0;dula=0;wela=1;P0=0xc0;wela=0;while(1)display(keyscan();void display(uchar aa)dula=1;P0=tableaa-1;dula=0;uchar keyscan()P3=0xfe;temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3; temp=temp&0xf0; while(temp!=0xf0)temp=P3;switch(temp)case 0xee

3、:num=1; break;case 0xde:num=2;break;case 0xbe:num=3;break;case 0x7e:num=4;break; while(temp!=0xf0)temp=P3; temp=temp&0xf0;P3=0xfd;temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3; temp=temp&0xf0; while(temp!=0xf0)temp=P3;switch(temp)case 0xed:num=5; break;case 0xdd:num=6; break;case 0xbd:num

4、=7; break;case 0x7d:num=8; break; while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xfb;temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3; temp=temp&0xf0; while(temp!=0xf0)temp=P3;switch(temp)case 0xeb:num=9; break;case 0xdb:num=10; break;case 0xbb:num=11; break;case 0x7b:num=12; break; while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xf7;temp=P3;temp=temp&0xf0;16while(temp!=OxfO)delay(5);temp=P3;temp=temp&0 xfO;while(temp!=OxfO)temp=P3;switch(temp)case Oxe7:num=13; break;case 0xd7:num=14; break;case 0xb7:num=15; break;case