1、鍵盤值是我自己定的，和原鍵盤不提一致，可以自己修改程序從上到下，從右到左鍵值遞增電路圖：原程序：#include<reg51.h>unsigned char keyv;unsigned char code table=0xC0,0xF9,0xA4,0xB0,0x99, /04                         0x92,0x82,0

2、xF8,0x80,0x90, /59                         0x88,0x83,0xC6,0xA1,0x86,0x8E; /AF（共陽管）void delay1ms(unsigned int t) unsigned int i,j;   for(i=0;i<t;i+)    f

3、or(j=0;j<120;j+);   void keyscan() /按鍵掃描子程序 unsigned char temp,scode;    scode=0xfe;    P1=scode;temp=P1;temp&=0xf0;if(temp!=0xf0)   delay1ms(10);    temp=P1;    temp&=0xf0;     if(temp!=0x

4、f0)   temp=P1;       temp&=0xF0;    switch(temp)          case 0xe0: keyv=0;break;           case 0xd0: keyv=1;break;     

5、;      case 0xb0: keyv=2;break;           case 0x70: keyv=3;break;                 scode=0xfd;     P1=scode;temp=P1;temp&=0xf0;if(t

6、emp!=0xf0)   delay1ms(10);    temp=P1;    temp&=0xf0;     if(temp!=0xf0)   temp=P1;       temp&=0xF0;    switch(temp)          case

7、0xe0: keyv=4;break;           case 0xd0: keyv=5;break;           case 0xb0: keyv=6;break;           case 0x70: keyv=7;break;    &#

8、160;              scode=0xfb;     P1=scode;temp=P1;temp&=0xf0;if(temp!=0xf0)   delay1ms(10);    temp=P1;    temp&=0xf0;     if(temp!=0xf0)   temp=P

9、1;       temp&=0xF0;    switch(temp)          case 0xe0: keyv=8;break;           case 0xd0: keyv=9;break;        

10、60;  case 0xb0: keyv=10;break;           case 0x70: keyv=11;break;                   scode=0xf7;     P1=scode;temp=P1;temp&=0xf0;if(temp!=0xf

11、0)   delay1ms(10);    temp=P1;    temp&=0xf0;     if(temp!=0xf0)   temp=P1;       temp&=0xF0;    switch(temp)          case 0xe0: ke

12、yv=12;break;           case 0xd0: keyv=13;break;           case 0xb0: keyv=14;break;           case 0x70: keyv=15;break;