10 {
11 unsigned char a,b; 12 a=0x80;
13 for(b=0,b<8,b++) 14 { 15 p1=~a; 16 ys1s() 17 a=a>>1;
18 }}}
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1 #include(reg51.h) 2 unsigned char i; 3 sbit D1=P1.1; 4 void zd interrupt 1 5 {
6 TH0=(65536-50000)/256; 7 TL0=(65536-50000)%6; 8 i++ 9 if(i==20) 10 { 11 i=0; 12 D1=!D1; 13 } 14 }} 15 main()
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16 {
17 Tmod=0x01;
18 Th0=(65536-50000)/256; 19 Tl0=(65536-50000)%6; 20 EA=1; 21 ET0=1; 22 TR0=1 23 i=0; 24 while(1) 25 }
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1 #includ
4 switch
6 cace 0xfe:P1=0xfe;break; 7 case 0xfd;P1=0xfd;break;
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8 case 0xfb:P1=0xfb;breek; 9 case 0xf7:p1=0xf7;break; 10 case 0x7f:P1=0x7f;break 11 case 0xbf:P1=0xbf;break; 12 case 0xdf:P1=0xdf:break; 13 case oxef:P1=0xef;break; 14 } 15 }
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1¡¢ #include
3¡¢ ={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; 4¡¢ unsigned char jianma[8]
5¡¢ ={0xfe£»0xfd£»0xfb,0xf7£»0xef£»0xdf£»0xbf£»0x7f}; 6¡¢ void yanshi20ms(void) 7¡¢ {
8¡¢ unsigned char j,k; 9¡¢ foor(j=40;j>0;j--) 10¡¢ for(k=250£ºk>0£ºk--)£»
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11¡¢ } 12¡¢ void main(void) 13¡¢ {
14¡¢ unsigned char jishu£»jianhao,saomiao; 15¡¢ P2=0x3f; 16¡¢ while(1); 17¡¢ {
18¡¢ P1=0xff; 19¡¢ saomiao=P1; 20¡¢ if(saomiao!=0xff) 21¡¢ {
22¡¢ yanshi20ms; 23¡¢ saomiao=P1; 24¡¢ if(saomiao!=0xff) 25¡¢ {
26¡¢ for(jishu=0;jishu<8;jishu++) 27¡¢ {
28¡¢ if(saomiao==jianma[jishu]); 29¡¢ {
30¡¢ jianhao=jishu+1; 31¡¢ break 32¡¢ } 33¡¢ }
34¡¢ P2=duanma{jianhao}; 35¡¢ }}}}
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1 #include
2 uchar led[]={0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; 3 void ys(char a) 4 {
5 unsigned char i,j,k; 6 for(i=a;i>0;i--) 7 for(j=200;j>0;j--) 8 for(k=250;k>0;k--) 9 } 10 main() 11 {
12 Tmod=0X20; 13 TH1=0XF3; 14 scon=0X50; 15 pcon=0; 16 TR0=1; 17 while(1) 18 {
19 if(P1= 0xfe)SBUF=led[0];ys(20); 20 if(P1==0xfd) SBF=led[1];ys(20); 21 if(P1==0xfb)SBUF=led[2];ys(20); 22 if(P1==0xf7)SBUF=led[3];ys(20); 23 if(P1==0xef)SBUF=led[4];ys(20); 24 if(p1==0xdf)SBUF=led[5];ys(20); 25 if(P1==0xbf)SBUF=led[6];ys(20);
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